Hello Windows from Aunty Jack in Australia,
I watched the YouTube clip. What a mess you seem to have. XP boot is looking for things no longer there. Don't rely on any advice I give, but.
No. 1 - check which Services are set to disabled. If in doubt, set them to manual start.
No. 2 - your Registry seems totally, "facakta" (damaged). The XP OS is looking for things in the Registry that have been damaged or deleted manually or by a virus/trojan/.worm.
No. 3 - if you can, find as freeware, Bluesprig Jetclean. Ccleaner. Wise Disk Repair. Wise Registry Repair. HardDrive Powerwash.
No. 4 - if none of these work to fix the boot problem I hope you have your original legal XP install CD. You may then try the Repair option or do a fresh install and start all over again.
Cheers from Aunty Jack.