Windows 7 by default hasn't activated it. So the thing to do is exactly the same as you did it before.
http://www.google.com/search?q=windows+7+quick+launch will give you a lot of links to instructions on how to do that, in case you forgot. Choose the one that works for you.
Sorry, I can't help with the other question.
I just had to completely re-install Win 7 pro 64 bit and lost some of my settings. Two important ones were the quick launch option and the other was the "deep" administrator privileges. Can some one out there tell me how to regain those two options?