Sorry but you have been scammed LimeWire basic is free and pro is $18.88 for pro and 6 months of free upgrades. Get your money back and download LimeWire at the official site. The first link is to a thread that is about people that have been scammed. You can get LimeWire at the second link below.
http://www.gnutellaforums.com/showthread.php?t=28751 http://www.limewire.com/english/content/home.shtml