A couple things to check out before you order this processor...1) I am not sure this motherboard will correctly recognize a xp processor. It will support the tbird line but im not sure about the xp? I checked online and it says nothing about it even in the bios revisions? i would look into this
2) I just looked up your motherboard on gigabytes website and the highest you can clock your processor would be 115mhz fsb (230 mhz external clock)...it supports settings of 90, 95, 100(your current processor), 105, 110, 115mhz and all of the fsb changes are made through dip switches on the motherboard...refer to your manual regarding this....
So you would be really cheating yourself buying this processor for such an old/aged motherboard...in other words you would be downclocking the speed of the processor since the multiplier is locked on these processor (if you can unlock the multiplier then maybe you could reach its true speed but with a much lower fsb)...my suggestion is to save up and upgrade the mobo as well...at least to the k7S5a (super super cheap mobo) from ecs which will support your ram and the processor to its fullest. My two cents