Just for the heck of it, I tried another P2P-program (Morpheus) on the same computer and same browser, etc. Only change was the P2P-program in other words. I didn`t like the program much so it`s deleted now. It did have some advantages over Limewire, but the drawbacks was too big to rival LW.
Anyhow, it did Bitzi-lookup with ease. The search results came faster, and somewhat more than LW, but it didn`t mind the settings. I set it to max 6 simultaneous downloads, and still it tried downloading 16 files at once. Not good, as each file didn`t get any bandwidth to talk of. And when I had a hang-up, I had about 200+ files in download queue. Upon start-up it didn`t find one single file to download, and didn`t start them again.

Well, the point is, I think it`s something with the Limewire program that`s concerned when trying Bitzi-lookup. Otherwise it wouldn`t have worked with such ease in another program.