Yep, it’s possible but it’s to be disputed whether it’s actually Aero Glass or not. I un-ISO’d a build of Vista and came up with the setup screen, on my Windows Server 2003 R2 server at home. On the setup screen was a link to the File and Settings Transfer Wizard (or Windows Easy Transfer as it’s now known) and because the computer was running a bit slow at the time, came up with the Windows Easy Transfer dialog with the blue-green “Aurora” wallpaper still being loaded. Therefore, came up with the Aero Glass dialog box.
Image may be NSFW.
Clik here to view.
Clik here to view.

Click for a larger image