I don't mean to appear completely backward, but maybe it's unavoidable!?

I've downloaded the backtrack 4 ISO, and Unetbootin.

Extracted the ISO to a USB, no worries.
Directions instruct me to run bootinst.bat, which I can't find on the USB I've created.
(I'm using Windows XP for this process)

Is there an alternative route to achieve this process, or a place I can find the bat file?
I've searched all over but can't find an existing thread that answers this question.
The only ones google throws up are on the remote-exploit.org site that seems to be down right now.

Many thanks