Vista 32 and no sign of SP1. I thought it was supposed to be in mid-March or I am thinking of something else.
There are number of updates people with 64 but have that I don't. I presume some updates only apply to the 64 bit version. m
I did the reg hack earlier on my Vista 32 Home Premium laptop and ..

Does seem a bit nippier and everything still works. Need a few days play.