need help changing windows 7 images and pre installing software

[elfenliedtopfan5]

right what i wish to do is install windows 7 and add custom images like changing images on dialogs like this

i want to change those images to custom ones other than the wight background and the blue

and also what to know if its possible to have a program already installed like sony vegas 8.0 if you could help would be amazing also want to change logon screen and windows 7 theme thank you elfenliedtopfan5

Edited February 24, 2012 by Tripredacus
removed hot linked image

[Tripredacus]

Its typically a bad idea to hotlink someone else's image. I removed it, fortunately it was just showing a placeholder image and not something disgusting. Anyways, we have a bunch of topics like this already in our Customizing Windows section... where this topic now sits.