nas express install 6.0.43-0

Hi,

We are trying to replace the control station with 6.0.43-0 nas code installed.  However, when we check powerlink for the 6.0.43-0 express install, we cannot find it.  Powerlink only shows 6.0.43.1 express install.  We tried this version and we encountered an error:

ERROR: NAS version 6.0.43-0 was found. Cannot recover a different version of NAS. Exiting...

NAS, VAR and DOS devices cannot be recovered....

Type 'C' to continue:

Could someone help us point where we can download the exact version 6.0.43-0?

Thanks,

Roy