smfcbplugin problem

Hello

I have:
SMF 1.1. final
CB 1.0.2
JSMF 2.0 rc3

(Almost) everything is working fine. As far as I understand, I should be using CB login module in order to keep 3 bases in sync.
When I try to add a new user thru CB' user management, I get the following error:

Code:

Fatal error: jsmfCB::validateUser() [<a href='function.jsmfCB-validateUser'>function.jsmfCB-validateUser</a>]: The script tried to execute a method or access a property of an incomplete object. Please ensure that the class definition "jsmfFrontend" of the object you are trying to operate on was loaded _before_ unserialize() gets called or provide a __autoload() function to load the class definition in /home/.........../components/com_comprofiler/plugin/user/plug_smfcbplugin/smf_cb.php on line 186

Another issue is: When I change password for an user, it is updated inside joomla and CB, but not in SMF.

Am I missing something? Help appreciated...

regards
Piotr