Here is the easy way. Go to autozone, and buy the funnel that has a plastic hose attached to it. Then, buy about 2 ft of rubber hose that will fit inside the plastic hose. Now you have a funnel which can reach the fill plug on the transmission.
Just remove the shift knob, then pop out plastic trim panel which has the vinal cover on it, then you can see the ground. Feed the hose through the hole on the right of the shifter, get underneath, and put about 2 inches of the hose inside the transmission fill plug.
Then get back in the car, and add ATF until it starts to pour out the fill plug. Then put the plug back, and you are done!!
Remember, our 5-speed manual transmissions take Dexron automatic transmission fluid, NOT gear fluid. If you doubt me, check your haynes manual, and it will tell you the same.
Scott