PXE Help

I am not new to Altiris but new to the admin side. I have 7.5. I have booted up to pxe and started some tasks, but i'm kind of lost. Most of our user machines boot to pxe, so what i want to do is:
1. boot to pxe
2. if f8 is not hit like in 6.9 the machine passes pxe then boots to windows
3. have two options in pxe ghost and rdeploy. I know rdeploy is going away in service pack 1 but need for a few days at least because of older images.