Stick a large screwdriver behind the glass and lever it off,when it comes off you will see how it is held on(ball socket)fit the new one,you can buy a sticky on replacement glass from many car DIY shops if your stuck.
anon
January 2010
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix vans.