I signed up for a limewire pro and my credit card was charged but I never got the email to activate my account,so right now i still have a free one,anyone out there can help me?

Providing you just bought Pro from the official site www.limewire.com, check out the thread below. The best bet is probably to send a PM to limenathan, there's a link within the thread.
Problems getting your LimeWire Pro after payment or other Pro payment issues etc