If the carrier can slide up and back even a little bit that means it's not jammed. I'm thinking it's a hydraulic problem because you say you bled it but the pedal still goes to the floor.If there was a jam and the system was bled properly then the pedal would be solid and wouldn't push in.
Just a thought, go and check your clutch pedal adjustment and see where its at. It might be screwed in too much and need adjusting out.
Out of intrest, how did you bleed the clutch?