Have you tried junking the results under 2 MB? That's what the junk filter is about. Eventually it learns what is & isn't junk. But just be careful you train it properly! Some junk is easy to filter out.

Go to the Bitzi site & see if you can find it in a search there. They have a search function. If you do, make a note about its known names to find it under, the exact file size, user comments, ratings, & even try the magnet link there. Some have gnutella compatible magnet links. (But many don't work.) But these details will give you some hints in finding the file.