WSUSOU stuck in reboot cycle, now won't boot

Hello all, I attempted to use WSUSOU on my WinXP machine, but it kept rebooting/recycling. I ended up interrupting the cycle and deleting the "WU temp admin" account, but now the machine shows an error message for a brief split-second, which is then hidden by the "Windows is starting up" screen.
At this point I basically am going to need to use a utility of some sort to boot into the machine and delete whatever pointer is telling the machine to use the non-existent account, but I don't know enough about WSUSOU to know how this is done.
What do I need to remove/modify to have the machine stop trying to boot into the "WU temp admin" account?
Thanks for any suggestions.
At this point I basically am going to need to use a utility of some sort to boot into the machine and delete whatever pointer is telling the machine to use the non-existent account, but I don't know enough about WSUSOU to know how this is done.
What do I need to remove/modify to have the machine stop trying to boot into the "WU temp admin" account?
Thanks for any suggestions.