CAT Cwestions?

Hi to all TTL'ers! I have just acquired another CAT box but this time I got 3 pods with it.(6809,Z8002,Z80) I haven't quite got to grips with it as yet but have a few questions if anyone can help Which Atari games use the Z8002 & Z80? The Z80 pod I got was uncased..... did it come this way and why 4 connectors? Did Atari ever have a manual which accompanied these pods? What other Atari pods were produced? Anyone have the Atari info for the mod required to do ROM checksums with the CAT? How good a job does the CAT box do? (Are all my troubles over?) Anyone got a flyer for the CAT box? Thanks in advance -- XY-Man