To those who is looking for a Google Checkout payment module in VirtueMart 2.0, here is a new Google Checkout plugin for VirtueMart 2.0:
http://www.opensource-excellence.com/shop.html?view=item&id=427
Wiki is avaialbe here:
http://wiki.opensource-excellence.com/index.php?title=Google_Checkout_Installation_for_VM_2.X
Hope this helps those users who is looking for the module.
OSE team