I went through the connection frustrations; finally called my Cable ISP and found out that they now block all file sharing programs.
I have a "friend of a friend" who did some sort of workaround on my friend's PC (with the same ISP I have) and my friend can now use all P2P programs again. My problem is that my friend doesn't know what was done, and we have been unable to get in touch with the other guy ever since.
Anyone have any idea as to what can be done to get around an ISP that blocks P2P traffic?

Thanks!