Users who just registered can login & change profile information, but cannot create certain contents until admin lets them Users who just registered can login &amp; change profile information, but cannot create certain contents until an admin says they can. I know this can't be achieved using the Drupal Approved/Not arppoved scheme. Are there alternatives? Maybe with permissions?

If possible, I would also like to use a block(or other means) to let the logged in user of their status/permissions e.g. they can only change profile info, cannot create certain contents, etc.
As Sandesh suggested, give registered users permission to change their profile information, and remove the permission to create content. When an admin sees that a user is qualified to post content, they will give the user the permission. The permissions will be on an individual basis, so we use the User Permissions module.