If you're sure your college hasn't changed their policy then, make sure your firewalls are setup properly to allow 100% access for p2p use. See here:
http://www.limewire.com/english/content/firewalls.shtml
You can also do 2 other things: Delete your LW Preferences folder called
.limewire found here:
C:/Documents And Settings/your_username/.limewire
And update your Java to
Java 1.5 (take the JRE)
See how you go.
By the way, all forums have rules & it'd help if you read ours:
http://www.gnutellaforums.com/announ...?s=&forumid=29
b/c you posted in the wrong forum section & ignored ALL the Stickies which said don't post here including the forum rules.