Why don't you use http://unetbootin.sourceforge.net/ to create a
USB Flash Drive that should be able to boot from USB. You can do this
on any computer.
To build a boot floppy go to the above link and download the (plpbt.bin) file
in Section #7.
Use the following command to build the floppy:
Then boot from foppy, and select USB from the menu which will boot
dd if=/home/login/ppbt.bin of=/dev/fd0
the USB Flash drive.
I tested it on my old Compaq Presario 1672 with DSL 4.4.9