Windows 7: Windows Vista and 7 on one DVD/USB???

i have to manage and install (on a regular basis) PCs running Windows 7 and Vista so is it possible to have windows 7 and windows vista on one DVD or USB?? and can i change the background of the installation process so it doesnt just say windows 7 (me being picky)

I keep Vista on my Windows 7 USB install stick which is also my tool kit with several dozen installers on it. When I need to install Vista, I sweep the Windows 7 install files into their folder for storage and spill the Vista files out into the root of the stick.

The stick was originally set up by writing Windows 7 installation ISO to it using Universal USB Installer with Windows 7 in the dropdown menu. I then copied in the other tools and Vista extracted ISO in its folder.

As stated whichever OS you're needing to install must have its files spilled out into the root to boot.

Why would you want to take Windows 7's branding off of the installation process?

its just me being picky because i tried to put the wims together in WAIK and i dont wanna see windows 7 if it has vista on it too

You could also use MDT for this - you end up with a customized PE doing the install, so you have no branding (and you have the option to change the background, etc).