Daarigaz 0 Newbie Poster

I have this laptop a toshiba a55 s3063, the problem is that xp is screwed and have alredady formated hard drive, with an external mini ide to usb adapter, and just cant CHANGE THE BOOT ORDER so i can install XP, it ask me for a password (which i don have) and sometimes it allows me to press f1 and change date, and set a password, really weird, the restoration cd tellsme to put the drive turn the laptop on while pressing "c" but it doesnt work, it will never boot from cd and a formatted ntfs hard drive will show the ntldr problem so how can i get a copy of xp working, i though of install it with other HP laptop, and change some registry keys so it will boot on my toshiba, but dont know how, i think you could help me please