It still blows air, and it blows it as hard as it's supposed to, but it dosen't blow cold.

What are the possible things that could be wrong with it?

EDIT: After a bit of testing I'm fairly sure that it needs a recharge. The compressor is hot so I know it's running.

How would one go about a recharge?

Wal*mart or your similar local communist store will sell a recharge kit. Find out what refrigerant your vehicle needs and then go find it. You will purchase the refrigerant AND a connector hose. Apply the hose to the can of refrigerant and then to the refrigerant reservoir. Open the can and it should all empty in to the reservoir and then test the AC. Usually there are directions on the can.

HOW ?? is Walmart communist??
did you even think about it?

Thanks. Before I go and spend money on this, how can I be sure that it needs a recharge?

This.

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http://www.marshmallowheaddesign.com/images/shop/WalMarx.gif

Think about it. If theres no small companies, and one big company. And everyone works for one big company.... sound familiar?

Yea... it sounds like fascism, which is diametrically opposed to communism.

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In communism you can say that everyone works for one big company also.

My wife calls them the devils store, but all I see is made in china.