Login / Logout Problems

I have solved this issue.. (after installing and removing the component a few times)... but now every time I log in and try to access my cb profile I get and huge SQL error and the profile...(this error happened after installing and uninstalling the component)



I am a little bit confused about this component and its use. So if a new user uses his facebook account to login (and I have set the option to create new fbxxx accounts) he is redirected on the CB registration page (to create a local user). So in fact he needs to register anyway. So he creates an account that is attached to his FB account. Everytime he uses his FB account he is automatically logged also with his local accounts ?

But how can he used this. Is there any way to automatically send posts on the user's Facebook wall everytime he posts a new article on my site. Or even better is there any way that the user's score on my site games be posted on hos FB Wall ? Or is there any way to pull the users photographs from his FB account ?

Thx for all the help . ...