Find the target (eyes work well), point the nose at it and slew the maverick at it (look at the crosshair on the HUD). Then look at the screen. Fine tune, lock, shoot.
Rosenkranz wasn't involved in CAS like you're describing. Possibly you're thinking of Dan Hampton? He just wrote a book called Viper pilot. The closest Rosey got to CAS AFAIR was attacking forces west (or east) of an airfield as the main targeting restriction.
EDIT: Or possibly A Nightmare's prayer. A harrier pilot in afghanistan with a similar situation to what you described.
Flag 1 is being switched on the moment you enter. You are still in the trigger zone presumably so flag 2 is true and you're in the zone, hence flag 2 is switched off and flag three is switched on. You're still in the zone so the next message plays etc...
To each his own. I can barely manage 20 minutes without wanting to fly low level, shoot the gun, eject or attack my wingman. I usually resist that last temptation. Occasionally. :D
To be fair to him money may not be the problem. I've avoided using a mic because me talking all evening would drive everyone else in my house insane! If you really can't use a mic, set up TS, get good at typing. (If you're gonna fly with a serious group; get a mic.)