Title says it all... I need the raw mp3 so that I can communicate with my zune. Also, iTunes is not receiving any of the downloaded songs, and my connection does not work unless I uninstall and reinstall every time I reboot the comp.

Sorry - I'm not sure what you mean. There's no difference between LW 4 & LW 5 if you choose to download a .mp3 file

Do you mean that you don't see file extensions in your search results, so you can't pick .mp3 from .wma or .m4a etc??? If that's what you mean then see this thread: File Extensions in LimeWire 5
Just switch to Classic View, choose Audio category, right click the column header & enable Extension (& whatever other info columns you want to see).

LW 5 lets you have songs automatically transfer to iTunes. In LW tools > options > downloads. Tick 'add audio files I downloaded from LimeWire to iTunes > ok.
Once the download's finished in LW, iTunes will open & you'll see the file being added to iTunes.

See whether this thread helps: If LW 5 Will Not Connect

I mean that the files are not showing up in the destination folder.

Did that. ITunes is being lame. One reason why I want to get WMP working.

And nope. I already found and tried everything in that thread.