Western Digital 2060-701537-004 SATA " L" model PCB

Q1:  I have a 2060-701537-004 rev a.  I have heard that you need to have the same firmware or it can corrupt the drive.  How do I tell what the firmware version is?  Do you provide a service to swap out the PCB for me?  If so what is the cost?

Q2:  I am looking for a pcb for a  western digital Disk 1 tb
Top site disk
S/n: WCAU41461159
WD 10EACS
MDL: WD10EACS-00D6B0
Date: 02 AuG 2008
DCM: HHRNNT2CFB
R/N: 701537
Printed on the PCB:
2060-701537-004 REV A
no white paper on the disk
2061-701537-R00 AD
XC 6Q05 5HJN M 0005030 9035.
Do you have this type of disk

This Western Digital 2060-701537-004 SATA ” L” model PCB is listed in Western Digital SATA PCB on HDDZone.com