I used an 002 Controller on PT 10 without nary a hiccup. BUT it was on Win 7, not Mac. The best advice I can offer is make REAL sure you have the correct drivers.
Whereas the 002 controller is not QUALIFIED for PT11, doesn't mean it won't work. Since it uses the same driver as the 003 (which I now use on 10 AND 11, and it works just fine) it's probably at least worth a try.
Do you have a dedicated hard drive for audio? Didn't see one mentioned but you need one.
Here's a link to driver downloads.
http://avid.force.com/pkb/articles/d...02-003-Drivers
Worst case scenario, find a 2nd hand 003, sell the 002 to somebody that doesn't feel a need to go past PT10.