After updating to 2.2 I can't download apps from the app store because it says I have a wrong password but when I try to update an app and I type in the same password it works is any1 having the same problem or knows how to fix it?
That sounds very strange and I certainly don't have the same problem. Perhaps try changing your iTunes password using the desktop app? It might just clear out whatever glitch is causing it.
That's weird. I'd suggest changing the password using the desktop app as well as trying to install an app on your phone using the desktop itunes and syncing.