Hello there Susan,
I don't think that the LANDESK Mobility Manager 9.0 can work properly on a 9.5 SP1 or later core.
The architecture of the mobility manager has been dramatically changed with the introduction of the Mobility Manager 9.5, removing the need to have a server installed on-site to manage the mobile devices and adding the same functionality using Avalanche configured in SaaS mode (Avalanche On Demand - AOD)
If you are running a Management Suite 9.5 SP2 or later, you may want to use this version of the Mobility Manager:
In general, here are the pre-requisites for the Mobility Manager:
The ability so arrange devices in folders and sub-folders is implemented in AOD.
I'm not even sure if the version combination you are using is officially supported, I guess is not.
If you are not willing to migrate your mobile environment to LDMO 9.5, I'd check this with the LANDESK Technical Support.
Hope this helps