this is an obvious one... but have you tried things that would onviously return items?? i.e. - "napoleon dynamite" or "mad world" (just thinking of the most recent searches i did that returned a ton of results)
Also, what plugins/networks are you using?? gIFT has the availability to use OpenFT(great but small), gnutella(very large), and FastTrack(VERY VERY LARGE used by KaZaa)... If you are only using the OpenFT network.. it wouldn't be surprising if it returned nothing... check the apollon configuration and see what plug-ins you're using
