What happens when you try to download? Do files show up in the download section below search results?? Or do files show up in the download area but not actually download at all (eg is the download stalled from the beginning)?
If you'd told us that you couldn't delete the gnutella.net file originally (post #3, you said that you'd "done all the suggestions") then you could've saved yourself days of frustration.
It's ok if people have trouble with a fix but they need to tell us... we can't read minds