Trouble upgrading RAWS on Mac OS X

Hi All,

This may be simple for a seasoned professional, basically we have a Mac OS X server running 10.8.5 with a Backup Exec Agent installed (was comissioned by an engineer with agent VRTSRalus 13.05204).  The problem I am experiencing is now when I try to upgrade the agent I receive the following error:

'This patch only applies to RALUS/RAWS shipped with Backup Exec 2012 ...exiting'

I'm following Symantec article TECH179999 when I receive these errors and can only assume I need to remove the previous Agent as the current agent I'm trying to upgrade to is 'ralus1798'.

I may be totally wrong as I have had little to do with Mac OS X and backup Exec Agents.

Any help on this matter would be grately appreciated.

Cheers

Colin