Usually new OS releases FIX things and introduce new things THAT WORK. I am VERY SORRY that I installed Lion--especially for my use of a larger monitor (rather than the 13" Macbook). My question: I saw on here somewhere (I haven't been able to find it again, still learning to navigate) that someone said to use MISSION CONTROL. Excuse my MacDumbness; how does one use Mission Control to even get at screen res issues?
Just a tip - never purchase a new OS in its initial release unless you are prepared to deal with quirkiness. It doesn't matter how large the beta testing pool is, nothing can weed out the bugs like mass adoption. It's always better to wait for at least the first major update (which looks to be due out any day now).
Snow Leopard was quirky too, even more so than Lion, IMO. It also took much longer for developers to get their software up-to-date, as I recall. Heck, we must have had a hundred threads talking about reverting back to Leopard back then. But a month or two went by, and all of the sudden no one was complaining about Snow Leopard anymore.
The same thing will happen with Lion - people just don't do well with having 'someone move their cheese'.
As to your question - not sure how to answer as you didn't really describe your problem. If you truly need to change your screen resolution, then no, Mission Control wouldn't do you a bit of good. Those settings would be found in System Preferences => Display.
If you're talking about managing your windows like you would in Exposé, then yes, Mission Control is roughly equivalent. The Mission Control icon should be right in your Dock.
If I'm completely off-base, then please fill us in with a bit more detail...