[horde] Horde Backup

[Alvaro Jérez]

I have horde installed in a mail server and I want to backup all 
configuration in order to migrate it to another server.
I already installed horde in the new server and copy the data base 
located in /var/lib/mysql.
Is there anything else that I have to copy ? I don't know how to migrate 
all the email messages.
When I try to access in my computer (as a  test) I access to a default 
administrator page but I want to access to the classical page that says 
Welcome to Horde and have the possibility to access with my login and 
password and see all the emails that was in the old server and have the 
address book and so that.

What other configuration I need to make ?

Thanks in advance.