Looks like MS have re-released the ConfigMgr 2007 R2 VHD with a later deactivation date.
If you want to evaluate the product but don't want to install all the bits and bobs, this is the way to go.
Read the complete post at http://wmug.co.uk/blogs/r0b/archive/2010/07/23/configmgr-2007-r2-vhd-rereleased.aspx