Yes, the GOW editor is very buggy. Thankfully, you can buy UT3 for $19.
As for GOW, when you install, there's an extra "check box" you click for it to install Editor shortcuts, but if you don't, it doesn't, but yes, just add " editor" to the end of the shortcut.
Try that with other UE3 games, and sometimes you'll get some funny error messages.
