Hey
Well at first it wouldnt work. Not with the files you have send me. But You did put me on the right track. I duplicated and edited the example user plugin which comes with joomla and it worked.
New in version 1.2.4:
The add user frontend component now calls the onAfterStoreUser event which tells joomla and 3rd party extensions that a user has been inserted or updated, so each extension can what needs to be done. This results in better compatibility with other joomla extensions.
Offcourse i should also implement this code in the one click registration component.
And it also showed me how i can make extra plugins for the components to integrate with 3rd party components.
So thank you very much for bringing up the subject in the forum here

This is the way that good open source scripts are made
Grtz Kim