Look at where the lines attach to the PS pump, where the lines screw into the rack and if you don't see any leakage then only other spot it could be would be from one of the inner tierod ends. I've had a seal go under the boot before and let the fluid flow out to my driveway.
I checked all the lines, they are all dry. It's just seeping out from somewhere I cant see, it's all over the a arm underneath. And theres prob 25years of grease build up on the outer tierods and stuff. I wonder if replacing the whole rack and pinion would be for the best, I cleaned the boot, and squeezed it and can't find any thing.