WordPress MU

I'm using the LiveTwit theme which allows you to pull tweets from Twitter based on either a userId or searchword. I'm wondering if it is possible to enable the use of multiple searchwords, or userIDs, with some modification. The index page publishes the Twitter feed as so:

<?
if ($pt_twittype == "SearchWord") { ?>
        <div id="twitterSearch" class="tweets "></div>
        <script type="text/javascript">
			$('#twitterSearch').liveTwitter('<?php echo $pt_twitvalue; ?>', {limit: 10, rate: 5000});
		</script>

<? } else { ?> 

         <div id="twitterUserTimeline" class="tweets "> </div>
             <script type="text/javascript">
                $('#twitterUserTimeline').liveTwitter('<?php echo $pt_twitvalue; ?>', {limit: 15, refresh: false, mode: 'user_timeline'});
            </script>

<? } ?>

Might there be a modification here to enable this?

Cheers