Welcome to Seven Forums.
I agree with Swarfega, upgrade was first mistake. Yes you will have to set everything up in the new OS when not doing an upgrade. What did you expect? These builds are for *testing* purposes and are not meant to be your main OS. Though I and many others are using them that way, disaster can strike without notice and you must be prepared for that. I suggest a dual boot. Then you can play(test) 7 while still having Vista for backup or as your main OS.
I think you'll also find, as I did, that 7 will get faster after it has had a little time to settle in and get prefetch established and also get everything indexed. W7 boots much faster than Vista for me. Not to mention Libraries, Aero snap and the new and improved taskbar. My comp. wakes from sleep before the main monitor can wake up.
Hope this helps.