XP booting from external box

Ok guys, I got TinyXP installed in my external HDD (which is in an external box that plugs into the pc via usb).
Thing is, I can't seem to configure boot.ini to make the pc boot from my external drive.
Can you guys help?

true. have u checked bios options? also another posibility.  GET A REAL FUCKING HARD DRIVE YOU DOUCHE. also, have you tried opera? it runs rather nice and is a known panacea for all computer problems.

www.opera.com