MSN Transport + Spark + Openfire

Dear Friends

My MSN Transport does not work in Spark. The plugin IM Gateway is installed on the server OpenFire. Other customers such as Miranda, Gaim are working.
On the screen of the Spark is the MSN icon in gray and when I do the record of my account MSN Transport is offline.(Screen Attached)

Please help me?

Thank You

Luiz Marcelo