Does anyone know the most recent versions of OM Server Administrator and IT Assistant that can be used for PE2500SC?  I can't find any support documents on which versions past OMSA 4.5 are compatible.

 I am currently using  OM Server Administrator 4.5 and IT Assistant 8.1.0.    I would like to go to a later versions of  OMSA  at least -  like version 6.4 - but don't know if it is compatible and the documentation is not clear.  

Any help would be appreciated.  thanks!