Software Upgraded - Reset Your Password to Login
In order to log in after the forum software change, you need to reset your password. If you don't have access to the email address you used to register your GVR4.org account, you won't be able to reset your password. In that case, follow the instructions here to regain access to the forum.
i just had this happen to me. i jammed it back in there and smacked the edge with a screwdriver and hammer to keep the sleeve in place, but still having movement and its been good for a few hundred miles.
You can get it to work well enough to get you by for a bit. As was mentioned, shove it back together and dog the edges of the retaining piece with a screwdriver. You're going to probably have to replace it before too long, though.