Pdragonfly,
I was speaking of making a Boot CD with utilities which can completely wipe the HD of all partitions and then doing a Clean Install of XP Pro on the 40 Gig HD from scratch HOWEVER keep on doing what you are doing.
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I think what you are seeing in the fast black windows are notifications that some drivers are not installed like the VIDEO, SOUND, LAN, WIRELESS, MODEM, ETC., ETC.. and other devices which need to be loaded after you successfully load XP.
Upon loading XP, go to: Control Panel>System>Hardware>Device Manager and see what Devices have a RED X or Yellow ! marks. These are the Device drivers you need to install.
Remember the ones on the Toshiba site are all probably updated since you purchased your machine to include the latest Bios Update.
I am taking a special interest in your issue as you have a nice laptop computer, that when straighten out, will serve you well. I would very much like to have an old Satellite A20 computer with XP Pro just to experiment with (LOL) (LOL).
By the way, you can purchase new parts for that machine from parts dealers for very inexpensive prices now.
Think of this installation as if you were doing a complete Clean Install of XP on a machine that someone just gave you and you know nothing about the machine except from what is on the website.
I think you have more computer expertise than you let on.
Post Back as to your progress and any other questions you may have.
Regards,
Rick P.