gericom ego ms1003 no boot from usb option :(

[tccat1]

hello all nice forum here im wondering if anyone can help me out i wanted to run linux off a flash usb stick .but ive found out that i dont have the option to boot from usb in the bios menu is this possible? the laptop is a gericom ego ms1003 the bios is
AMIBIOS
version a10031g7 v5.40
build date 06/28/04
ec version 03/03

many many thx
im a complete newbie but thought it might be possible