if it only says a7v rev 1.02 on the mobo then thats what you got
ive used a couple of those boards (several years ago) they only support 100mhz fsb (even though the motherboard has jumpers to set it for 133mhz fsb you wont be able to get it to work, the kt133 chipset just doesnt overclock that high, they usually only get around 110mhz) and since your xp1800+ runs on a 133mhz fsb it means that even if you get it to post on that board it will be running underclocked
but your main problem is that since you have rev 1.02 your board doesnt even support the duron (morgan) which is the same core as the athlonxp(palomino)
if you had a a7v rev 1.05 then you could probably get it to work, but it would be running underclocked... with rev 1.02 it probably wont even post
but.... all that being said, it wont hurt anything to try, it wont damage the cpu nor the motherboard if you install it and try to get it to post