purefunrx7

Hey, i have an 88 rx-7 se and i thought my clutch went out about a week ago. Now i am being lead to believe otherwise. The shifter will go in when i press in the clutch and it feels like it is in gear...but when i release the clutch and press the gas to take off, it goes nowhere. My friend suggested it might be fork that holds my throw out bearing. If the case is that the fork thing broke, how much would that cost and where can i get one?