Hi,
Cary, start here, and it should walk you thru all the stuff Wolfsong talks about: https://www.wildlife.ca.gov/Hunting/Deer
They'll have maps, tell about tags for different zones (most of the "good" zones require you to register for a drawing, though Zones A and B might still be "over the counter" purchases. Those are NorCal zones, though, so don't have anything to do with R-side Country.) There are also special hunts in there somewhere, usually for junior hunters, as well as all the regs on what you can hunt, equipment regs, etc.
It'll take you a while to get thru all of it, but should answer all your questions. Have fun!
If you want to take a ride, head over to the San Jacinto Wildlife Area, and talk to one of the wardens in person. Right now they're around on Wednesdays and Saturdays (waterfowl shoot days) for sure. Other days of the week it's a crapshoot. You're probably acquainted with it, but just in case, it's up Davis Road north from Ramona Expressway . I think it's Hanson Rd. on the south side. I just look for the market when I'm over there to know where to turn. BTW, if you've never been there, or it's been a few years since you have, you must go in from the south: they've blocked Davis Rd. coming from the north and Moreno Valley so you can't get in that way any more.
Rick C