it sounds like he never installed the hydraulic throw out bearing properly and now it has left you with no clutch at all. i would try bleading it first just as you would if your bleeding the breakes pump the pedal and hold it while realsing the pressure remeber to tighten the nut before realesing the pedal to pump again and always check to make sure you have enough fluid in the resivour. the valve is located on the bell housing of the trans in a black gromet you will see it from the top no need to crawl under your car and your clutch hydraulic fluid is the brake fluid it is all the same resivour. well i hope this helps you out if not it looks like your going to rip the trans out again. best of luck
