I don't know where you're posting from, but if you're in Europe/UK, try a company called.......Americanino (01483 770888)......They are memory suppliers for most MI machines.

Alternatively, you need 72pin, preferably non EDO, 60ns or faster, parity or non parity, 8 or 9 bits, and they don't read 8Mb or 32Mb simms.

good luck