Why won't air blow out of my vents?

[Johnny Fort]

You guys are *******' amazing! I had 30 minutes between work and school so I thought I'd look under the hood. Sure enough the AC hose coming from the vaccuum tree was completely severed. So I ran to Ace Hardware and bought 2 feet of orange air compressor hose ($0.78) and threw it on to see if it would work. What do ya know, air blowing everywhere! Will this hose last or should I use something else?

The only problem is that there is no cold air. What should I pay for a recharge (it hasn't been done for at least 5 years)? Can I do it myself?

Thanks again fellas.