For a free SyncML client search for "Funambol Sync" on your mobile device (ex: iPhone or Android) application store. Once installed, start application and hit "LOGIN" button since you already have an account. Suggested Funambol SyncML client settings: Goto client settings and set "Scheduled" and "Interval" and checkmark "Push client changes to the server".

OR YOU CAN PURCHASE AND USE THIS CLIENT:

Synthesis AG clients: You can download and try them for 30 days here: http://www.synthesis.ch/dl_client.php?lang=e&lay=desk or search for "Synthesis Sync" on your mobile device application store.

Follow the installation instructions and use these settings:

SyncML Server Version: 1.1
SyncML server URL: http://go.imageway.com/syncml (or look it up at Settings -> Synchronization in your Mobile Office)
Port: 80
Username: Your Mobile Office full email address
Password: Your Mobile Office email password

The default settings should work but if something goes wrong check the advanced settings of each datastore: