I have a MacBook with Office 2008 Home and Student edition. Works great, except I discovered that can't use Entourage to sync with my Exchange 2007 server at work. If I bought Office 2008 for Mac, Standard Edition, Upgrade Version, would this do the trick? I certaintly don't want to have to buy the full Office suite! Finally, would the upgrade version install on top of the Home and Student edition I have now? Thanks.