So he got a version (I think off Craigslist), which is PTLE 8. He couldn't get his version of Pro Tools (6.something, I think) to work.
So, I helped him get a new laptop, originally running Vista. He had it working OK with a PowerMac, but eventually the thing just died.
My friend bought a used MBox 2 a couple years ago off craigslist. I apologize if this is a dumb question, but after much searching, I've come up with nothing.