ahahahahahaahhah......
okay but seriously i shouldnt laugh i keep old computers around all the time (mostly sentimental / im a pack rat)
ive got an asus a7pro motherboard that is similar to that motherboard... and ive found you can stick whatever socket a you want in there, but it probably wont run at full speed.
I picked up a mobile 1800+ xp on ebay for like $20, stuck in there and it worked but at 1.25ghz because of the 100fsb and no 133 like yours... but i found some wire trick that makes the multipliers go higher and i have it running at 1.8ghz now
anyway back to your problem....
Its an Epox board, not epson xD epson makes printers. and laptops, about 20 years ago ( i have an epson laptop from my uncle thats a 486

)
it looks like you have options to overclock it fairly high, according to
http://www.active-hardware.com...mainboard/ep-8kta.htm
though i HIGHLY doubt it will go over 120fsb. Thats as high as my kt-133 chipset motherboard goes, 121 and no boot. and even at 120, i corrupted my hard drive. i wouldnt reccomend more than a 105 or 110 fsb on those things lol
and you are looking for 168 pin SD-RAM, either pc100 or pc133. looks like you can have upto 1.5gb just like my board. not sure if any old ram will work, you would want low dencity just in case, but my board took just about any ram i threw at it, pc66, pc100, pc133. depending on the ram you can overclock that too, like get pc100 ram cause its cheaper by a little, then make it run at pc133. so that is 3 sticks of 512mb you can have, though those are still fairly expensive for some old crappy hardware at about $30 or so bucks on ebay. just adding two sticks of 256mb should make it happy enough for windows xp

but yes you have a 100fsb limit, so most people will tell you your limit is one of the purple/grey ceramic cpu's that only go upto 1ghz or so, and those can be hard to find. i say go for a low end athlon xp for like $10-20 on ebay, make sure its one with a multiplier of 12.5x or less, or else it probably wont boot right on your old board. it will be underclocked, unles you want to venture into the world of crazy overclocking and do the wire trick and get higher multipliers like 15 and 18 etc to make it run full speed.
if i make no sense tell me what im not being clear on and ill try to explain better
- Dave
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*update*
CPU: Mobile Athlon 64 4000+ Newark core @ 3ghz (240*12.5)
Mobo: ASUS K8N (HT link @ 960mhz and good @ 1ghz+ also with 250*12)
RAM: 512mb DDR400 + 1GB DDR500 @ DDR460 (2.5-3-3-10 2T)
PSU: 350w nspire?
h4x to teh m4x.