PHP Code:
<?php 

class Twitter_Feed_Reader 
{ 

    var $feed = Array(); 

    function __construct($user_id = false) 
    { 
        if ($user_id) 
            $this->load($user_id); 
    } 

    function get($parent, $name, $item = 0) 
    { 
        return $parent->getElementsByTagName($name)->item($item); 
    } 

    function load($user_id) 
    { 
        $twitter = new DOMDocument(); 
        $twitter->loadXML(file_get_contents('http://twitter.com/statuses/user_timeline/' . $user_id . '.rss')); 
        $rss = $this->get($twitter, 'rss'); 
        $channel = $this->get($rss, 'channel'); 
        $username = explode(' / ', $this->value($channel, 'title')); // split Twitter & Username 
        array_shift($username); // remove Twitter 
        $username = implode(' / ', $username); // in case Username contains slashes 
        $link = $this->value($channel, 'link'); 
        $atom_link = $this->value($channel, 'link', 1, 'href'); 
        $items = $channel->getElementsByTagName('item'); 
        $this->feed[$user_id] = Array(); 
        foreach ($items as $item) 
        { 
            $this->feed[$user_id][strtotime($this->value($item, 'pubDate'))] = Array( 
                'description' => substr($this->value($item, 'description'), strlen($username) + 2), 
                'link' => $this->value($item, 'link') 
            ); 
        } 
    } 

    function output($user_id, $template) 
    { 
        if (!array_key_exists($user_id, $this->feed)) 
            $this->load($user_id); 
        $midnight = time() - gmdate('G') * 60 * 60 - gmdate('i') * 60 - gmdate('s'); 
        foreach ($this->feed[$user_id] as $time => $data) 
        { 
            $date = false; 
            if (gmdate('d m y', $time) == gmdate('d m y', $midnight)) 
                $date = '<strong>Today</strong> at ' . gmdate('g:ia', $time); 
            else if (gmdate('d m y', $time) == gmdate('d m y', $midnight - 86400)) 
                $date = '<strong>Yesterday</strong> at ' . gmdate('g:ia', $time); 
            else 
                $date = gmdate('d M. Y, g:ia', $time); 
            echo str_replace('{date}', $date, 
                 str_replace('{link}', $data['link'], 
                 str_replace('{description}', 
                    preg_replace('/\@(.+?)\b/', '@<a href="http://twitter.com/$1" rel="nofollow" title="View $1\'s Twitter Profile">$1</a>', 
                        preg_replace('/(https?\:\/\/)(.+?)(\s|$)/', '<a href="$1$2" rel="nofollow" title="$2">[link]</a>', 
                            $data['description'] 
                        ) 
                    ), 
                    $template 
                ))); 
        } 
    } 

    function value($parent, $name, $item = 0, $attribute = false) 
    { 
        return ($attribute ? $this->get($parent, $name, $item)->getAttribute($attribute) : $this->get($parent, $name, $item)->firstChild->nodeValue); 
    } 

} 

?>
How to Use:
$feed_reader = new Twitter_Feed_Reader();
$feed_reader->output($numerical_user_id, $html_template);

Example:
$feed_reader = new Twitter_Feed_Reader();
$feed_reader->output(75376101, "<q>{description}</q>\n<cite><a href=\"{link}\">{date}</a></cite><br />\n");

Outputs:
Code:
<q>The server is back online.</q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4893105057">15 Oct. 2009, 4:59pm</a></cite><br /> 
<q>Server is down for an unknown period of time. Nameservers are offline. See you when they return.</q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4828704115">13 Oct. 2009, 5:45am</a></cite><br /> 
<q>A wild Imakuni? appears! See what the fuss is about: <a href="http://forums.offlinegamers.com/imakuni/" rel="nofollow" title="forums.offlinegamers.com/imakuni/">[link]</a></q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4755707691">10 Oct. 2009, 6:27am</a></cite><br /> 
<q>Soon to hold a contest for top poster and/or top referrer. Giving away expensive accounts. Get in on the action! <a href="http://bit.ly/107Bl9" rel="nofollow" title="bit.ly/107Bl9">[link]</a></q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4639080884">05 Oct. 2009, 10:10pm</a></cite><br /> 
<q>Graphics & Programming Forum Opened: <a href="http://bit.ly/HztF2" rel="nofollow" title="bit.ly/HztF2">[link]</a></q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4612427470">04 Oct. 2009, 9:47pm</a></cite><br /> 
<q>Installed a banking/money system. Get a head start on earning OGG!</q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4587784628">03 Oct. 2009, 9:19pm</a></cite><br /> 
<q>Haven't finished tweaking settings, but *registration is live*. Get a head start in the new OG community: <a href="http://forums.offlinegamers.com" rel="nofollow" title="forums.offlinegamers.com">[link]</a></q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4570861109">03 Oct. 2009, 3:17am</a></cite><br /> 
<q>Installing the forums. Should be ready in a few days. Tell your friends to get ready and to follow us on Twitter. :-)</q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4558544227">02 Oct. 2009, 5:37pm</a></cite><br /> 
<q>Just underwent a huge coding overhaul to improve performance speeds.</q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4517543114">01 Oct. 2009, 4:46am</a></cite><br /> 
<q>Postponing forum installation due to cPanel issues. Will work on it in-depth first thing tomorrow.</q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4459675564">29 Sep. 2009, 2:09am</a></cite><br /> 
<q>Found a server! We should be officially opening soon.</q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4434721052">28 Sep. 2009, 4:07am</a></cite><br /> 
<q>@<a href="http://twitter.com/KaienLG" rel="nofollow" title="View KaienLG's Twitter Profile">KaienLG</a>: We're just waiting on a server that can support us. I'd make a custom user system, but that would only postpone release.</q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4420650660">27 Sep. 2009, 5:07pm</a></cite><br /> 
<q>Updated the OfflineGamers Twitter profile with a custom-made design.</q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4411264799">27 Sep. 2009, 5:34am</a></cite><br /> 
<q>Altering the colors of and adding random effects to the Gaia Online images in order to avoid any copyright issues.</q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4367957707">25 Sep. 2009, 1:19pm</a></cite><br /> 
<q>Coding the OG template and making it look similar to Gaia Online, except better.</q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4314925373">23 Sep. 2009, 1:15pm</a></cite><br /> 
<q>Both AIM and YIM support accounts have been registered under the name OfflineGamers.</q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4164491819">22 Sep. 2009, 3:56am</a></cite><br /> 
<q>Just finished the basics of the Twitter feed reader. Now to program it into the soon-to-be OfflineGamers.com.</q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4128318032">20 Sep. 2009, 6:24pm</a></cite><br /> 
<q>OfflineGamers.com is now in our possession; waiting for the server to be up in the next few weeks.</q> 
<cite><a href="http://twitter.com/OfflineGamers/statuses/4108807298">19 Sep. 2009, 7:53pm</a></cite><br />