Tried, I still can't get it working on more than one thread, I also can't get all the command prompt stuff to set up right. I can't figure out how to set my team, user name, or any other settings. All I can manage after several hours of tinkering is one dos window popping up that says working 0/2500000......0% at the bottom. (might have the wrong number of 0's, but it's a large number). To sum it up I've got no clue how to set it up, and I can't find a worth while guide that gets me through my problems or explains jack.
Personally I think it would be easier and quicker to just install a number of virtual machines to fold on, than even mess with that SMP client as it's anything but user friendly.