User System on Main Site

[Arrangements]

Originally Posted by Dismounted

So it is more secure.

You can't reverse MD5. MD5 is a one-way hash. To authenticate the cookie, you will need to encrypt the password from the database to the same algorithm.

Oh, why didn't I think of that! Thanks, I hear what you are saying.

NOW, this is what has baffled me!

How do I start? <- simple? No?

- How do make a copy of all of the users on the forum onto my main database, while development, when new users have to be created on the forum? Do disable registration while development?
Edit: [Removed because going off topic of the real question]