Thanks for the great product!!

I was however woundering if it is possible to change the Vista locked screen to display the background images rather than it's ugly green logon background (XP Style)?

That's a little different than just replacing an image or a setting.

Try this out: http://www.vistax64.com/tutorials/79886-logon-screen-change.html

Your background image won't show through (i.e. if you change your desktop picture, the logon/locked picture will remain the same) but you can always change it again.