Please, is there anyone that can give me a program where I can make full-screen shots of the models? NifSkope just doesn't do the trick.
Wow awesome looking stuff; I think you're quite good at texturing - at least way better than me

.
if it is just the background colour of niskope you don't like you can change it:
go to menus-->render-->settings --> colours tab --> background and set to w/e colour suit you, I often do a light blue since it is easy on the eyes, not many things are that colour and things show up good against it.
if you want something else I don't know but a bit more details?
Pacific Morrowind