How do I replace an existing exchange 2007 database with an old backup copy I have.

Please helpnow can I just replace the current datebase with the old. I've read all that microsoft and it doesn't help me much.

Steps help please?

As I said you should just be able to overwrite the new store with the backup version.

The edb has different name?

OK, I'm confused can you explain what happened and what you did?
This will help me to better understand what needs to be done to correct it.

Ok what I orginally did was Used the windows SBS Console and moved the exchange data using the wizard to another location on the server. Then I came to work in the morning and users could not connect to the exchange server. I noticed that the database could not be mounted. So what I did was recreated a new mailbox database.

Now I still have the old database files and folders. What I would like to do is replace the current running one with the old one.

The window backup and recovery wizard did not work for me.

So How can I import the files from the old one and have them over write the current running one???

Is there anything in the new one?

Currently no

You can try renaming the old file to the same as the new one and then copy the old one over the top.  Never tried it with different names buy it won't do any harm to try.

just did it did not work:(

I think your only option is to create a recovery storage group (RSG) as per: http://www.petri.co.il/using_rsg_in_exchange_2007.htm

This