Microsoft won’t have a patch ready until next week at the earliest. So for at least a few days your computer is seriously vulnerable if you’re browsing the internet with IE.
But there are temporary solutions. One is to enable Data Execution Prevent (DEP) in Vista/Windows 7 for IE. You need to do this manually, but it might save you. Except it might not, as some French researches (see first article I link to) claim to have a workaround to make the exploit work while DEP is enabled.
And the threat is serious enough that people (read IT admins on behalf of those under their care) may resort to this very solution.
So use Flash, you say.