Your Pro payment covers you for 6 months of updates & email support. Whatever installers you download & save during that time are yours. Once your 6 months is up, you can either keep what you've paid for or subscribe to Pro again. Some scam sites offer a "lifetime membership" but the official site, www.limewire.com operates on a 6 monthly subscription.

If you bought your Pro from the official site & paid $US 18.88 just a few days ago, there are links here to help.
http://www.gnutellaforums.com/showth...threadid=54008
Sending a PM to RSterne is probably the best way to sort things out.