okay well i am trying to download limwire on windows 98' and eveytime i try to do it it says i don't have permission to download file to disk and when i try to download it to a folder it says that this installation package can't be opened and to contact the application vendor to verify it's a valid installation package, what do i do???

Try this:

http://www.winguides.com/registry/display.php/901/

note: if you want to ENABLE downloads, you should set that value to 0.