I strongly suggest you cancel that trasnaction ASAP & make sure that is of your cc card. And keep a watchful eye on your statements to make sure no funny charages appear. you can only get limewire at the official site. the scam sites do that to con you not only out of your money but to get your cc info and use it.
good luck.
www.limewire.com IS THE ONLY place to get Limewire.