I had followed this tutorial...and I had used this code.
Now I have used the config.php.sample... and the problem is solved;
But I think that I have problems with pear because when I try to change the pass this happen: "Could not find Pear DB library".
If I do pear list I get this:
Installed packages, channel pear.php.net:
Package Version State
Console_Getopt 1.2.3 stable
DB 1.7.13 stable
PEAR 1.9.0 stable
Structures_Graph 1.0.3 stable
XML_Parser 1.3.2 stable
XML_Util 1.2.1 stable
Thanks for your infinite patient.