So, I've decided after 20 yrs of letting a Bike shop do all my work, I am going to become self sufficient. Here is my question.

I have a NOS Specialized 2007 Carbon Fiber Cross bike frame and fork. It has an integrated headset I think. It has no exposed bearing races like on my other bikes, it looks all internal. Anyway when installing the fork what holds it to the frame? Is the clamp on stem simply holding the fork tight, or is there some kind of star nut I need to know about? Its a 1 1/8 th carbon steerer tube. I know I'm a dumb ass for asking but I'm trying to learn.

Once properly adjusted yes the clamp on the stem holds the fork in the frame and keeps the HS adjusted. You do need a starnut or compression nut in the steerer to use with the bolt in the topcap to adjust the bearings.

This may help

NOT a starnut! The OP specifically said he has a carbon steerer so a compression plug is mandatory. Otherwise that is correct, the compression plug will allow the bolt through the top cap to set the headset's adjustment.

Yes I agree he does need a compression plug rather than a, as I just relearned from the video, star fangled nut.

Thanks to both of you for the help. I am apparently getting old because I have yet to figure out what a great resource YouTube is! Thanks again for pointing me in the right direction