oops--bad news
1--you're in the BearShare forum (should have posted in LimeWire, so that's probably why you missed the warning you needed about the scams)
2--you've been scammed. See the long thread about the problem at
http://www.gnutellaforums.com/showth...threadid=28751
Good news: some people were able to get their money refunded from the sites that take advantage of people thinking they were getting LW PRO. The details are in that long htread posted above.
However, it can take a while to read, so . . .
FIRST: call the credit card company and get the transaction cancelled right away.