Ok, The first thing I'd do is to buy a Haynes Manual for the car as you'll learn so much from it.
That being said, here is what you need to do;
1. Jack up the rear of the car and place it on (temporary
(This is a 914 joke) but strong) jackstands.
2. Identify the clutch throw out arm, and its interface with the clutch cable. the throw out arm comes out of the bottom passenger side of the transmission bell housing.
3. Identify the clutch cable and adjustment nut and while securing the clutch cable end, tighten the nut.
4. Tighten the nut until the clutch pedal free play (the distance between "all-the-way towards the driver" and "starting to give resistance") until there is about 1" or so.
Here is where the Haynes manual will help as I don't remember the spec.
5. Put a Jam nut on the end of the clutch cable to keep the adjusting nut secure (unless it is a nylock nut) and take the car off the jackstands (see, it can be done).
6. Start the car, and try it out.
Make sure the pedal freely goes to the floor before you start the car then see what happens when you do.
Do that much and write back with success
or failure
. If it is failure, there are a few common problems it could be.
I hope that helps.