when you type /pitbull you should see the first config screen, at the very top Configuration Mode should be Disabled. If its enabled, every pitbull window is shown (and moveable etc) and it can be very overwhelming.

Party Target's lets you see who your party is targeting, I have that turned on definitely since it lets me make sure my party is all targeting the same person. For that however make sure you open up the Party Targets +, go into Other and Size and resize the frames to something smaller - I use 50%. Then you can line it up with the party frames. Its a bit of a pain but I have gone through and changed Size to 50% for a lot of stuff, like focus, focus target, target of target, Pet, party, etc. I turned off a lot of stuff too like raids.