Looks like a scam site to me.
LW Pro costs $18.88 USD for 6 months of updates & email support. LW basic is free. The only official site for either version is www.limewire.com

You should contact your bank/CC company & report this, ask them to cancel the transaction:wink:
You'll find info about being scammed in both of the threads below

http://www.gnutellaforums.com/showth...threadid=28751
http://www.gnutellaforums.com/showth...threadid=44499