You cannot change the username. If you email us your username and password we'll remove your account and you can re-register.

   

You can click on the 'forgot password' link provided near the login button.

   

It may be that the image size is pretty bigger. Besides the upload limit, you should not cross the maximum upload limit available for your particular plan.

   

You can send them the link generated in the userpanel under the link 'vistors page'.

   

At the time of creation of an album you can check the check box that indicates a private album.