[turba] contacts lost

[Gustavo Alberto Mendoza López]

Hi everybody, 
 
i had to change my webmail app form one server to other. To do that i just
copy the entire /var/www/horde directory to the new server and it seems to
work fine. Now the problem i have is that all the contacts where lost.
 
Does anybody can tell me how to backup those contacts from the old server???
i've understood that the information is on sql DB. Any information would be
really helpful. Thanks.
 
I'm using horde 2.2.5, imp 3.2.4 and turba 1.2.2 on a Linux Fedora 3 (both
servers)