Either the hosts for the files have gone offline or it's possible that you're trying to download fake files. Start a new search & look up the files before download with Bitzi, to check quality & content
How to use Bitzi
If they're movies then 349MB sounds a bit small, unless they're part 1 & part 2?

Try varying your search terms a bit, use the All Types search & look for movie title - avi. Remember to search at different times of day too, as users in other time zones log on & off more sources will be come available.