Those files are normal, but always scan the entire torrent folder before playing or unraring it...You can do this by right clicking on the folder and select scan file...
The only difference between the different torrent folders are that some choose to rar their files and other's don't, they just place the entire file in as just the one...Sometimes you will see a 100 odd files...
You will need to install Winrar, you then place the torrent folder into it and it will create the movie file for you..You can choose to do this by using the wizard.....
This is a post I created some time ago, when I used Limewire for torrents, which I don't anymore, utorrent is much better...
http://www.gnutellaforums.com/283980-post2.html