Ok all things I can remember
I think Kat was fired because she had huge heat in the locker room, and because they had nothing for her after the RTC angle. Lawler then left in protest. While they were they broke up and divorced, I'm not sure 100% if this was the cause, but I remember seeing a pic on the net of the Kat giving on of the Dupp brothers a blow job (was real, not a fake) and basically things went from there, Lawler returned etc....
Jacqueline is a trainer at OVW currently. Ryan Shamrock works on the independants under her real name Alicia Webb. Apparently she's quite a good manager, with lots of charisma. I think she left because Ken Shamrock refused to do an incest angle with her, and thus they had nothing for her. She used to be a stripper, just thought I'd throw that one in
As for BB, I know she works on the independants but I can't remember under what name, I'll check that out for you. Again, the WWE just had nowt for her.