LimeWire Pro Doesn't Recognize Itself

[littlepepito]

okay. so, i'm using mac osx 10.4 - tiger, and i already have the most recent version of limewire downloaded. i buy lw pro, download the file from the link and run the program, do the install, but there's no change in my lw. it's just the same old program. have i neglected to do some sort of update? do i need to uninstall and reinstall? someone please help me. also, i did download it from the official lw site, so it wasn't a scam. i got the confirming email and i can access the download page.