Just an FYI that over on the techlog blog they posted an article on troubleshooting Task Sequences in System Center Configuration Manager. This looks like a good one too so if you do a lot of work with ConfigMgr and OSD then you may want to bookmark this one:
This article will give some guidance on how to start troubleshooting Task Sequences in System Center Configuration Manager 2007.
Task sequences provide the mechanism for performing multiple steps or tasks on a client computer at the command-line level without requiring user intervention.
When you install an operating system using SCCM-OSD Task Sequences you don't see any output of the tasks which are running, so if an installation fails you have to start digging into what went wrong.
To continue reading see http://www.techlog.org/archive/2009/03/01/troubleshooting_task_sequences
J.C. Hornbeck | Manageability Knowledge Engineer