Kahuna, no worries!
You'll find out when you scoot under the car. (get a large piece of cardboard to lay on)
The grease fitting on each universal joint is on 1 of the 4 sides. If they are pointing up, you are out of luck getting the grease fitting on the nipple. You will have to rotate the drive line to get the grease fitting pointing down or sideways to be able to press the grease gun connector on the nipple.
1 grease nipple on the universal joint on the front of the drive shaft and 1 on the rear universal joint. The 3rd is on the front of the drive shaft about 6" to the rear of the universal joint.

Anita, let me know your plans & where you'll be and I'll see if we can be up there.

Reg