if sysprep SEEMS to run but does not, you're probably out of REARM count. A count of 1 or 0 is too low and you'll have to rebuild the source system from scratch. Don't rebuild.
Support now knows how to troubleshoot almost all of the problems you have capturing. I know I do anyway and I used to be there and documented most of it in the KB already (have you looked at the recommended reading list?)
So do this first. 1) focus on one thing at a time. 2) if you can't get Sysprep to run build a new image from scratch because this task is NOT a commonly failing task. It should work UNLESS the rearm count is off. 3) once you get Sysprep running and reboot into automation, try the capture OR deploy. Whichever you're doing, if it fails, capture the logs - all of them - get them on the server. Then look at the DSTasks log - there's a KB on how to look at it AND how to find where it's failing in the Recommended Reading list (I wrote it so I know it's there). If you can't find it, attach it here and we'll find it.
We'll help you. MOST likely you don't need to uninstall, or rebuild or whatever - you just need to find the one missing file, or one missing security thing or... so be diligent, find the exact error, and you'll get a faster answer then by shooting in the dark.
Keep us posted!