I just started looking at Windows 7 for our migration from XP. Right now I'm just trying to get imaging tasks working from top to bottom for Windows 7 on a bare metal box and I'm having the exact same issue outlined here...
https://www-secure.symantec.com/connect/forums/ds-71-sysprep-runs-after-deployed-image-when-used-deployanywhere
The machine boots into the 64 bit preboot environment just fine, launches ghost and deploys the image, however instead of kicking off deploy anywhere before restarting (like this process does with an XP image), it restarts immediately after ghosting instead of running deploy anywhere first. Then there is a ghostuser login and if you sign in locally with the administrator account sysprep finishes and deploy anywhere launches and installs drivers and the imaging task shows as failed in the console.