How to install 32 bit lan card in 64 bit xp ( amd athlon 64bit )

i am having a probelm when i install the windows xp 32 bit it is very slow so i upgraded the windows to 64 bit and i was amazed when i saw the system performance.Now i am having an other problem i have 2 pcs, one is winxp32 bit and other 64 bit . I have 2 lan cards in the server 64 bit but the old card in not accessing any driver how to install its driver? . in simple is it posible to install the 32 bit lan card in 64 bit xp ?

^

Buy new network card that has 64-bit driver.