first of all I'm new and decided to try here! sorry if this is posted in the wrong forum area

just got a new sony cybershot t1 and it's nice but so many features seem confusing

EV Modes:
0EV , +.03 EV, +.07EV...what the heck is that stuff? the manual just says use this for adjusting exposure... dosent really get into details

- metering modes... spot and multi

- ISO 400 / 200 / 100 / AUTO

??????

if I wanna shoot car racing, say at a nascar racing with fast cars going by
it has a burst mode, but what kind of exposures would I set the camera to? does it matter
or just leave it on auto
I find it easy using the defaults

I was just wondering if anyone has this camera and the best way for shooting

thanks

Matt