Ok. so you couldn't find BIOS in these directory. never mind. I will tell you how to access BIOS in your computer.
The BIOS(Basic Input Output System) is built-in software that determines what a computer can do without accessing programs from a disk(HDD, FDD, CD). BIOS gives the computer a little built-in starter kit to run the rest of softwares from hard disks (or FDD, CD). The BIOS is responsible for booting the computer by providing a basic set of instructions. It performs all the tasks that need to be done at start-up time: POST (Power-On Self Test, booting an operating system from FDD or HDD). Furthermore, it provides an interface to the underlying hardware for the operating system in the form of a library of interrupt handlers. For instance, each time a key is pressed, the CPU (Central Processing Unit) perform an interrupt to read that key. This is similar for other input/output devices (Serial and parallel ports, video cards, sound cards, hard disk controllers, etc...).
Computers display instructions while the system is booting on how to access the system BIOS. A key usually accesses the BIOS or you will need to press a combination of keys before the Operating System begins to load. Some common keys are ESC, F1, F2, F10, Ctrl-Del, or Del. For more information, check the documentation that came with your computer.
I think for gateway it is F1 Key(or whatch your monito while system boots up. it will show press <Key> to enter setup.)
ok now now press F1 key while system boot. yep you are there. now all things are menu driven and easy follow.
now set Controller Mode in PC CARD section to PCIC Compatible. Also disable PNP(Plug 'n Pray ). it is in PNP section. now save all changes and reboot system. if it gives same error in system log(or any error) come back to us. let us see how far we can go!