@hahn87
after installing and running privoxy it appears in the system-tray, right-click, edit->Default Actions (open in notepad) OR from privoxy window Options>Edit Default Actions.
find for "user-agent" (no quotes), there are several, skip those until at about line 580 (somewhere in the middle) edit to look like:
+hide-user-agent{Mozilla (X11; I; Linux 2.0.32 i586)} \
don't delete the " \" at the end.
privoxy uses default 127.0.0.1 and port 8118, so go to your bt client and enter this as your proxy. look at privoxy log and your tracker info should appear there.
now, set your browser, say IE and change its proxy setting to 127.0.0.1 and port 8118 and browse. check privoxy log to confirm.
to confim that you have change your user-agent go to:
http://www.webprodevelopment.com/Web_Toys/..._My_User_Agent/if it reports your customized user-agent. success. bt client should now connect to trackers.