ph4nt0m, I am sending you a pm as mine is i do believe almost a exact match......
Here is yours: Here is mine:
Model: Maxtor Diamondmax 20 Model: Maxtor Diamondmax 21
Size: 160gb * PATA Size: 160gb * SATA
S/N : 5LS5KRDR S/N : 6RA2A7JA
STM3160812A STM3160815AS
P/N : 9DN032-326 P/N : 9DS132-327
Firmware: 3.AAK Firmware: 3.AAD
As you can see i have a SATA and yours id a PATA But i do believe the guts are about if not close............................ Let me know anyway...... I have a New 1TB i have loaded with windows but just have not transfered all my shit from the 160g yet------ But if it will work for ya let me know and i will transfer all of my stuff this weekend and send it to ya asap.......