my dear frined.. in Greece we say for your case.. my valuable knowledge I wish i had you earlier…
Dont you worry about a thing.
Personaly I whould ask SONY to ship me the DVD recovery since this is the easiest way to solve all your problems.
I had the same issue, i thought i could find all drivers from the net but… i did go ahead and foramted everything without having secured at least a set of recovery disks.
You can fix the camera but probably you wont go far with the combo keys. Try the new drivers updated at the sony support site and if you still can’t figure anything I will email you the camera drivers you need, but for the combo keys I really acnt help you. I fixed mine after i got the DVD from sony.
good luck… no worries…