LW Pro costs $18.88 & covers you for 6 months of updates & email support. The only official site to get either version of LW (basic is free) is www.limewire.com.

Your copy of LW was purchased more than 6 months ago and from a scam site... your email address would not ever be in the database! Sounds like you were promised a "lifetime membership" or something? It was just a scam. Have a read of the thread below, it has some info about scam sites
http://www.gnutellaforums.com/showthread.php?t=28751

If you do want to download a new version of LW, make sure to get it from the link above