how to fileshare with bittorrent in ubuntu

[user1]

I am curious about why it is a danger to the film industry that private 
people do filesharing using bittorrent, when I cannot make it work in 
ubuntu 9.04.

I have tried several bittorrent clients and made .torrent files for a 
video of some 29 mb, but I cannot make it work.

I have even had 2 different bittorrent clients sitting seeding the file, 
but it still does not work.

I also have the video together with its .torrent file sitting on a 
webserver (a webhotel).

What am I doing wrong?

Maybe it only works in windows - or is it a commercial only item, 
disguised as private filesharing?

I find it less easy getting help on this ubuntu-users mailing list, and 
even googling gives less usable answers to me?