Pro costs US$18.88 for 6 months of updates & email support. After 6 months, you can keep your version or pay again to get another 6 months' worth. The only place to get a clean, official version of basic or pro is www.limewire.com

If you got your version from anywhere else then you were scammed. Contact your CC company. Here's a heap of info about scams & what to do if you're a victim:
http://www.gnutellaforums.com/showth...threadid=28751