Ther is no such thing like a "lifetime membership" for LW.
LW basic is free and the pro version costs $ 18.88 with free update and tech support in the first 6 month.
Sorry pal, you got scammed, read here:
http://www.gnutellaforums.com/open-discussion-topics/28751-membership-warning-beware-download-p2p-clients-only-thru-official-sites.html
Only buy and download LW from the official site:
http://www.limewire.com/
