1991 Ford Tempo Main Belt

Hi,
I am alittle stumped on how to get this belt off. I can see no way from the bottom of car. I took the Altenator belt off and can see the Idler pulley but have no clue how to loosen it. Im told there are 2 screws on top to loosen. If thats true them I have a motor mount right in the way. Anyone know how to change the main belt.
Thanks

Im doing this today, sunday 9th. Ihave to replace all 3. I had to use 2 people on this. I took a long socket wrench and wedged it between the nut and inside of the idler pulley. Just pry it against the the engine mount and have somebody underneith to take the belt off the crank. Then it is a pain in the ass to fish out. I haven't tried putting it on yet but im not looking frward to it. I'll clue you in when im done.

Okay, i finished putting the water pump, serpantene and alternator belt on. Starting with the water pump i put it around the crank then tensioner then got it half way on the water pump. Since i dunno how far the belt tightener goes out i put it half on the rear of the pulley than unplugeed the coil for the distributor and turned the engine over. Popped right on. The the serpantene I first put on the power steering pump, then the a/c compressor and last on the crank. Then pull up on the tensioner and tuck it under. Finally the alternator was a breeze and in about 2hrs from start to finish i had replaced all 3 belts. I bought a tensoiner tool from advance auto and would work great on any car with clearance between the fender but i used it without the sockets and used the bar to pull on the tensoiner. Definately would not want to do this again for awhile.