CentOS 5.0 Login Error

After looking around for 2 hours i managed to find a post on this website and got to the next level but again stuck in using GUI interface for trixbox.

The first thing to do is to determine whether this is the same problem or not, and what the problem is specifically.

To do so, let's get you guys into single user mode on the trixbox Pro system to set a root password.
1) Start up or reboot your trixbox Pro system.
2) After a few seconds, when you see the "Booting trixbox Pro...", press "ENTER".
3) You'll see a "GNU GRUB" window and a selected line. Press the "e" key.
4) On the new screen, hit the down arrow until the "kernel" line is highlighted.
5) Press the "e" key to edit the kernel line.
6) You will now be at the end of the kernel line. Type in " single", and be SURE to place a space beforehand!
7) Press "ENTER" to return to the previous screen.
8) Press "b" to boot up your system into single user mode.
9) Your system will load to a "sh#" prompt. Type "passwd" and set a root password (you will need to enter it twice).
10) Type "reboot" after you've set your password.
11) Once your system reboots, at the inactive login, enter the username "root" and the password you set.
12) Type "/Fonality/activate.pl". At this point, you should be able to see the output of the activation program.
13) To send the output to yourself, run: "/Fonality/activate.pl | mail your@email.com". Be sure to post the output here so we can have a look!

Hope this will help someone who is just starting up.