A remote session with Support can do a LOT for fixing something like this quickly. I really think that, if you're still having issues, you NEED a call opened with support.
That said, I posted a few more comments above. Here's a synopsis.
1) Ghost does support Multicast now. RDeploy is depricated, so please use Ghost if you can.
2) RDeploy logs are on the server and Ghost logs are on the client when you get errors. Be sure to search the right location when troubleshooting.
3) Don't use BCDEdit when imaging XP. My bad.
4) (new) Be sure to try once with Ghost and with the option to use DeployAnywhere not selected. Even if you know you will be needing DeployAnywhere, try once without it, just to be sure that's not the culprit. We've had issues with it in the past. One solution, if that works, is to run DA manually. My sample jobs (top fo the DS forum) include a script for running DA manually, for precisely this reason.
Happy hunting friends!