Moving all users etc

Hello,

I have one site that is fully setup and one site that is due to open soon. I have transferred posts and comments via the export option.

However, I want all my users and cubepoints to be transferred properly to the new site. I have tried deleting the wp-users and wp-users meta from the new site and importing the old sites to the new via phpMyAdmin. However, some posts had totally different authors afterwards and the cubepoints plugin was giving some users other users points.

How can I successfully transfer all user data, comments and posts and points from the old site to the new. So it is exactly the same as it was?

I need this done preferably by tonight so any help is highly appreciated!

Thanks,
Regards,
James