So you downloaded and installed SP1, but now you want to verify that SP1 actually installed!

Looking at Outlook's Help Screen under Help->About, it isn't readily apparent that SP1 is installed.

Like me, you probably expected to see 14.1.something. Perhaps 14.0.something SP1, right?

If you click on that "Additional Version and Copyright Information", another window will pop up and show you a bit more useful info (if you don't have the version numbers committed to memory)

That window *does* give us that comforting SP1, and now we can determine that if you have Office 14.1.6023.1000 (and beyond) you are indeed runnning Office 2010 SP1!