First of all – as a new member I welcome you to this forum
Quote: ”Please Help with a complete tutorial for Vista&7”
Straight answer: unfortunately there is no such tutorial
It is much more complicated to combine these two NT6-systems (Vista and Win-7 as example) than different “old” NT5-systems (WinXP and server2003 as example).
However, strangely I have found a tutorial how to create a multi-setup combination of VISTA\Win7\server-2008 from USB device – read HERE
As you notice – tutorial is addressed to USB and not CD\DVD. Maybe it’s possible to skip the “USB-part” and only use the “multi-setup-part” to DVD  You can then - if tutorial works from DVD - create menu in EasyBoot and use “grub-kicker-images” to launch different setup of Vista\Win-7 as usual.
I really don’t know – and as I consider Vista to be such a lousy system I never create any setup for this system – it’s “out of date” from my point of view Win-7 on the other hand is pretty nice and stabile – but it’s you choice – not mine
balder
-------------- Download complete set of scripts including help fileHERE Note: Script collection updated 2019-05-19. Scripts mainly support EasyBoot_6.5 or later