Kim - when I replaced my rack with a rebuilt one from AutoZone, I'm pretty sure I received a 944 rack. While it fit just fine, and the steering ratio is identical, once I had gotten the shaft all hooked up on both ends, my steering wheel was 180˚ off - up-side-down - just like yours was.
The problem is not the shaft. Remember each end of the shaft can be installed in only one position on the splines, because there is a groove that the pinch-bolt has to sit in or it won't go through at all. What I think might have happened - in my case anyway - is that either 944 racks have the groove in the splined shaft coming out of the steering gear positioned 180˚ off from a 968 rack, or that during the rebuild process that part was installed 180˚ off from where it should have been. In either case, this causes the shaft, and consequently the steering wheel, to also be 180˚ off.
My solution was to simply pop the steering wheel off, turn it right side up, and put it back on. (Rather shocked the dealer couldn't figure that out - well, maybe not so shocked if they asked you if up-side-down was ok!)
And that's when I broke my little turn signal canceler thingy, continuing the trend of "every thing I fix on this car creates something else I need to fix"!