How to get your user name to be correct when Publishing to EPiServer from Office
Log in to the site and switch to Edit Mode.
Click the "Root" page, and select the "Microsoft Office Add-In" tab
Now select the "Activate" tab. It'll say you're already activated. Click Deactivate, followed by Activate. I'm guessing behind the scenes it writes some registry value.
Now go to a document in Word and click the "Publish to EPiServer" button. Your new username should appear now...