LW doesn't have a central server, you're connecting to other computers.
Sounds like you're trying to download a fake file. These things will never connect.

Search again. Try the All Types category as well as the more specific ones. Vary your search terms - look for artist, album, actors' names etc. Stay away from files with huge numbers of sources, try a file with 10 sources or less.
Check out video files with Bitzi before download
How to use Bitzi