Cannot log as adminstrator

[BinF]

I have just finished my cpa installation and configuration (config.php).
Everything has gone fine ... but ... when I login with the administrator parameters (login+pw) the system welcomes me but do non display any admin mode link.
I need help because I cannot administer my cpa. :cry:

[hyperion]

Did you run install.php?

You could not have accessed config.php unless you were in Admin mode.