After transmission swap car will not Move

First I installed the WRX (used about one year) clutch, pressure plate and flywheel and six speed transmission. I pushed the fork so the throw out bearing will click to the pressure plate but did not, after I installed everything I start the car shift it in gear the car will not move. I was thinking the WRX parts are not compatible with the STI transmission so I bought a new flywheel, cluch, pressure plate, throw out bearing after I installed the transmission bolts I pushed the fork same thing it did not click. Could it be a bent fork?