Well this keeps happining to me i can download it fine but when i try to open it it says its not a valid win32 program. I had limewire 3.8 and it worked great so i payed for pro and now i cant even use it can someone send me something so i can use it on my pc

try uninstaling LW than instal LW pro if this doesn't work contact LW at service@limewire.com

When you uninstall LW, make sure you delete 'all' of the files incl. preferences. Search your HDD for these files. Get rid of their folders also to be on the safe side.