Hi Lori,
Minor correction: They are DVD's, not CD's.
The vendor disk is likely an image disk that just splats the original
installation back onto the system, wiping everything out. It's useless for
anything else.
As your system came preinstalled with SP1, your assumption is correct in
that you cannot use the pre-SP1 disk to upgrade to Ultimate (and, in
reality, with retail disks all versions of Vista are there, it's your
product key that determines which version installs). You would have to
uninstall SP1 first, and that's not usually an option with preinstalled
systems.
As Carey has pointed out, if you use the Anytime Upgrade process, it will
include the option to receive a disk that contains SP1.
--
Best of Luck,
Rick Rogers, aka "Nutcase" - Microsoft MVP
http://mvp.support.microsoft.com/
Windows help -
www.rickrogers.org
My thoughts
http://rick-mvp.blogspot.com
"LoriCLF" <LoriCLF@xxxxxx> wrote in message
news:7877E456-091F-472D-81E4-DEA42BC66E3A@xxxxxx
Quote:
> Actually, I already have the Ultimate CD, which I received from another
> source, not from the vendor where I purchased my laptop. I believe I would
> only receive the Home Premium CD from the vendor, correct?
>