We've seen a lot of confusion about Digidesign's Pro Tools LE software and its ability to sync. Because Pro Tools LE does not have all the same display features for syncing as the full version people have erroneously assumed that it can't chase time code or resolve to external clocks.
The 001 can "trigger sync" to incoming MTC. It's pretty easy to get MTC from most devices. To get it from an ADAT you'll need an extra piece of hardware like a JL Cooper DataSync2 or other comparable product. Trigger sync is generally only good for syncing short (less than five minutes) pieces though. Go too long and the drift becomes noticeable, though it does depend on the specific characteristics of the machine you're locking to and the type of material.
If you need tighter sync you can resolve your hardware to external clock via its S/PDIF digital input connection. Most digital machines put out word clock you can use for this. In situations where you have some other type of machine you will need a synchronizer that outputs word clock. The MOTU Digital Time Piece is a good example of a device that can act as a master clock source for an entire digital system.
Synchronization issues can get fairly deep as systems grow in complexity, but there is an underlying logic to it all. You don't have to worry about mastering all of the subtleties though. Just call your Sweetwater Sales Engineer. These guys work very hard to stay on top of all the latest issues.