BT is different -- it is not essentially exactly a P2P network in normal sense, you can't search anything and you can't see the BT client at all unless you're downloading. You need to find .torrent file somewhere from the Net for the file you want to download and click it and BT kicks in and starts downloading it. So, in theory, it is just a download assistant (using P2P model for distributing the download sources), not a search tool.
I have downloaded BitTorrent V3.2 and the read me file states
BitTorrent is a tool for distributing files. It's extremely
easy to use - downloads are started by clicking on hyperlinks.
Whenever more than one person is downloading at once
they send pieces of the file(s) to each other, thus relieving
the central server's bandwidth burden. Even with many
simultaneous downloads, the upload burden on the central server
remains quite small, since each new downloader introduces new
upload capacity.
Windows web browser support is added by running an installer.
A prebuilt one is available, but instructions for building it
yourself are in BUILD.windows.txt
I cheated step 1 as it was too difficult and after seraching google for BitTorrent.exe. I found a file a bitTorrent.exe file at http://silvagni.free.fr/
I installed it okay. But don't know what to do next?