I haven't yet managed to figure out how to block outgoing traffic to people who are taking from me but are not also giving anything back!
I don't this is even possible given how Bittorrent works. Nobody is sharing a foler of files like on Kazaa or the other P2P networks. The only computers you are going to see are the ones already dowloading the file you want. They will probably already have more of the file than you, so you will be downloading from them and not giving back to those computers. On the other hand, the same will happen to you when others start downloading after you.
As for everyone seeing your IP address, it's necessary for the computers to know where to send the information. As long as you aren't downloading anything illegal, it shouldn't matter.
Whats an .RAR file and how do I open it?
A .RAR file is just another compression format like .ZIP. Look for a program like WinRAR to decompress the file. I've used this
program to open them.
goates