Bios upgrade and backup-how?

MY SYSTEM CONFIG
Intel(R)Desktop Board D865GBF
WINDOWS XP SP2
Intel(R) Pentium(R)4 CPU 3.00GHZ
1 GB DDR RAM
I was having the problem of BSOD,which after replacing the MOBO has stopped...But the random restarts still continue...The system restarts randomly...I'd posted this issue in the winxp forum and was asked to try upgrading the BIOS..Am new to all this so pls bear with me and help..
1) I am not able to find out who my BIOS manufacturer is...Even before i can see, it goes into the WINXP splash screen..Is there any other way to find out who the BIOS manufacturer is?
I went into the intel website http://www.intel.com/design/motherbd/bf/bf_bios.htm
to download the BIOS upgrade from there...Will that work well or should i download the upgrade only from the BIOS manufacturer's site?
But i see a EXPRESS BIOS and a FLASH BIOS update.which one should i download?
Also,i find BIOS UPDATE in the below link(intel again)
http://downloadfinder.intel.com/scr...rofessional&lang=eng&strOSs=44&submit=Go!#BIO
now,which one should i download?

2) Most importantly,how can i backup my existing BIOS, other than the manual method of noting it down on paper?

any kind of suggestions would be of help...these restarts are giving me a tough time...

Doesn't matter whether you use Iflash of Express. The latter is simpler to use I suppose.

Most BIOS flashing utlities give you the option to save a backup copy of the existing BIOS.

I fyou have an intel obard then download the bios update from Intel. also note that on their support site in the bios download section they have a bios download you can use for recovering from a bad flash I would download that as well.. the express bios flashis the easiest to use since you can start it from within windows but your board has to support that feature. if it doesnt then yo will have to use the regular flash method of using a floppy.