In xbox, you need to clear your provisional memory as called as system "cache." Clearing that deletes latest 2mb update for skate 3.
After that, you turn skate 3 on, open beer and wait until it asks you if you want to download that update. You got to cancel it.
Cancelling it means that you can't be on xbox live (online), so you got to work your parks offline with the glitch.
I found that glitch like a new start for skate 3. So much to do now...almost everything is creatable. But it also gives new issues like endless flicking and many glitched obstacles become ungrindable, which isn't always bad...but usually it is.