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Question: Hydraulic Clutch Won't Build Pressure!!!

Okay, I'm am stumped as to why my hydraulic clutch is not building pressure. It is for a 2000 dodge ram 1500 with the NV3500 trans. I am doing a bunch of work to the truck, one of which was pulling the motor to rebuild it and install a new clutch. So i pulled out the slave cylinder when I disconnected the trans. While the slave cylinder was out I also did some brake work. During bleeding the brakes my assistant had mistaken the clutch pedal for the brake and pumped that. This sent the slave cylinder rod shooting out along with the piston and a bunch of fluid, but the reservoir was not completely drained.... I was able to put everything back together and "bleed" the slave cylinder by pushing the rod up and releasing all the air to the reservoir. I did this until there was no air. But when I put it back into the trans, the clutch pedal was super super soft. I did some tests to see what was going on. For one, the system was creating such little pressure that I could hold back the slave cylinder with my hand when the pedal was all the way to the floor. Also I took the cap off the reservoir, fully suppressed in the slave cylinder, and pushed on the pedal, hoping to see the fluid level go up as the master cylinder displaced fluid, but the fluid level remained the same. To add to all of this, the whole hydraulic system is fairly new, with no leaks, and prior to this, the clutch pedal was hard as a rock! ANY help would be appreciated!!!! I'm completely stuck! Thanks!!!!!!