i would like to know the location of the air blend doors. I'm having trouble getting cold air. i get warm air just fine. the compressor engages and spins, and the refrigerant level is fine. all the vacuum lines seam to be connected, but i would like to check the doors

 

I would say the dash would have to come out which isn't an easy task. I have never had the dash out, but I have also never heard of the Alero have any issue with a blend door, not saying they don't though.

Just because the compressor is kicking on doesn't mean that the freon level is full. You said the level was good, how do you know? It could be overfilled and it would blow warm air. The pressure switch could be bad. Take a look at the condenser, if the fins are all bent over from bugs and rocks hitting it the air wont flow through it right and make the system not operate at 100%. Look for the easy and cheap problem before you tear your dash out. Thats a good 6 hours of work for someone that has done it before, so it would be more for someone that hasn't. But if you do end up taking the dash out replace the heat core while your there.