Hey,
Here's a pretty fantastic post in relation to Poker Tracker;
http://forumserver.twoplustwo.com/showfl...part=1&vc=1
I'm not sure I understand the freezing question correctly - I think what happens is when you set PT to auto-import, the minimize buttons dissapear, and it does look like the window is frozen. All you have to do is click on the "ring game" or "tourney" avatar - your stats will pop up. If you minimize the ring game/tourney window, you will see that the minimize/close/maximize option on the auto-import has returned.
Hope that helps.