You were scammed

Official limewire site is www.limewire.com and it clearly states that you get only 6 months of free updates

You may find this this thread interesting

http://www.gnutellaforums.com/showthread.php?t=28751

And this one (allthough it's probably far to late for you if you bought it that long ago)

http://www.gnutellaforums.com/showthread.php?t=44499