Control panel, then type 'unin' into the search box top right.
'Programs and Features', 'Uninstall a Program' will then be listed for you to click on.
For what it is worth, Vista was pretty fixed after SP1, let alone SP2.
In fact my 'upgrade' to Win7 had me looking for any changes at all, stability remained the same too - as in rock solid.
I know Vista bashing before SP1 became a bit of a web meme at the time, but I have rarely seen any substance to it since SP1.
As for Windows 8...the interface preview left me cold, so I'll probably wait until that is at least past SP1 too.