[JFreak]

It's not that the old hardware is incompatible, but if your sig is correct and you are using PT7 on Tiger, you cannot aggregate more than one interface together. Your ADAT box needs to work standalone.

I have no idea how that box works, but if it works standalone, you need to set it as clock master and let your 002 lock to its clock. And the clock is limited to 48kHz, there is no SMUX for 96k

If that box is an audio interface, you may need anothr computer to run it, then sync the two togeter. Not so straight-forward, but not too hard either.

But before we continue troubleshooting, please confirm if you are running PT7 on Tiger or something else.