Hi Fieseler,
All the install dvd's contain all editions, basic, premium, business, ultimate.
It is the product key you enter that determines the edition which is installed on your hd.
You need to get the right bit version, though. If you buy the packaged retail Ultimate, you get a 32bit dvd and a 64 bit dvd.
If you order replacement media, there is a $10 nominal charge, including shipping I believe. Not sure if you would get both dvd's for the $10 with Ultimate, or if it's per dvd. I presume you only need the 64bit dvd.
When you order the replacement media, you need to enter your product key - so they know what edition you have.
Windows Vista Alternate Media
As far as I know, they all include SP1 nowadays - it will probably tell you on the order page.
When you get your new dvd, suggest you make a copy , just in case it gets damaged or lost - it's very easy to do
Hope this helps
SIW2