did you read vitaly's replies to your comments?

if your company requires provisionable devices, then it's not possible to sync the N900.
it's not an issue of the MfE client, it has to do with Maemo/Linux being too open to be able to enforce the needed settings to fullfill the requirements.
this will probably change with Maemo 6 and it's DRM-Mode, but until then, you're out of luck.