There are fake files on the network which won't ever download...they'll sit connecting for a while then go to 'need more sources'. Maybe these are what you're seeing? Very often, these fakes show a huge number of sources.
Always check a file with Bitzi before download (click on link for more info)
How to use Bitzi

Search again, vary your search terms. Go for a file with 10 sources or less, or those with a modem source (providing the Bitzi rating is ok:wink.
A file with heaps of sources but no Bitzi rating is often a fake.