I have a similar problem to reds and popupdoll. Mac G4 733 with OS X.4.10, 1 gig ram

LimeWire Pro 4.12.14 wouldn't start and I couldn't get support because it had been more than six months, so I downloaded and installed 4.14.10. It won't start either, even though get info tells me I have the correct version installed. I paid $34.95 for one year of support, too.