Hi,
If you are downloading the torrents on the machine connected directly to the internet, then all you need to do is allow incoming connections on the following ports using the ENS firewall settings:
6881 - 6889
If you are downloading from a machine through the wingate machine, you will need to redirect these ports from the server to the client. This will also be done in ENS:
BTW - I think Azeurus is the best torrent downloader :p It is freely available from
http://azureus.sourceforge.net/ as open source software.
Goodluck