I’m using WinMX, too. I’m not too happy with it, but well … it works. I’m FlyingCloud365 there <img>
If I don’t find something that should be there, because it’s not too obscure, I just hit the search button again. Seems it sometimes searches on different servers.
I tried to add more networks (a so called expert-only function they have) but that doesn’t seem to help very much.