Thank you for your response Dan. Yes, I had tried that as well as booting in the last known working configuration. The system would not enter XP no matter what I did. The boot up sequence automatically presented the screen for safe/normal/last config./etc. modes. The system would begin to load and then would flash a blue screen of death and return to the safe/normal/lst config./etc. mode screen.
I decided to go ahead and re-format my hard drive last night. It is a pain to have to reload everything and there are a few items which weren't backed up that were lost but, I have my system again.
Thanks for your input Dan. Have a good day.