1st regedit

[bradhtc]

Hi been using my alltel vogue for 3 or so months now and almost ready to try my 1st regedit. Been doing lots of reading but feel I still need more, so,

1)can anyone point me to some good reading on this please?

2)can anyone tell me if i need to remove mem card in order to do regedits (so as to lose no info from back-up stored on card)

3)any other things I need to have before getting started?

The first edit I am going to make is GLYPHCACHE, unless someone thinks something else would be better to begin with. I would also like to do the unlock, WM 6.1 update and maybe a new cutom diamond rom or something like that down the road,
Thanks
Brad