This could be solved very easy, if the module could start with the facebook login instead of OpenID.
So we do not need to delete other types of login. There should be a setup possibility in the module in the future.
You can also use other Login modules/components, as I told You before.
In that case You want only Facebook, You have to make an Application on Facebook for the login.
Thats why, here this Login module is more comfortable, that for that You only need to setup 1 account at RPX and Your in.
For the future development of the Jobboard Login Module, I would prefere a setup possibility which services should be used first in the popup. – Not more!