Max numbers of computers on iTunes

I have been out of high school for almost 11years and my pc is in that age range. The only two music sites I used was aol muisc i think ... until they joined with iTunes. In the beginning I was all right with it.

Every time my pc broke I never had the chance to dearothrize it from my account. So right now even though it one computer and a netbook. It's to the max of arothrizions.

So what do I do, turn off my deaorthrize for the net book and use it for my iMac
And I have another question for the music thats not in iCloud would it load up if I plug in my iPod classic until I get the others off my pc.

Log in to your iTunes account at the iTunes Store and choose Deauthorize all from the section on managing your account (not at my Mac to check exact wording here). You can do this (I believe) twice a year.
After that all you have to do is reauthorize your current computer.

I think I already did that but nothing happen, I'm going to try on my netbook and leavening the rest for new years eve