I installed Funambol 3.0.8 plugin on 7290 and I get the following error when I try to start funambol

Error Starting funambol_blackberry_plugin : Class net.rim.blackberry.api.mail.SendListener not found.

BB OS Version : 4.0.0.219 (Platform : 1.8.0.129)

What can I do to fix this? I would really love to have funambol running so that I can synch up with Sunbird and get rid of Outlook altogether.

Upgraded the BB OS. Works.