bro, I had the same problem a while ago. refer to my thread Piratebay's tracker with Mininova


I use http://tv.tracker.thepiratebay.org:80/announce as the 1st tracker, as even http://open.tracker.thepiratebay.org/announce is not reliable cos I still upload to TPB.

you may like to use:
http://tracker.prq.to/announce
http://77.247.176.154:80/announce

one way to test these trackers will be to go to torrenteditor.com and use a sample torrent file. Input the trackers you want to test and click update and you will see which ones are working and which are not.