Trouble Adding External Link on Page Menu

I am using ato 3.51 and WP 3.0.

Help! Searched and found documentation on adding External links. Unless, I did not find the right instructions (great possibility) these posts are old from Oct '08 and I am wondering if the information is still correct?

Because, when I followed the steps and opened the bfa_header_config.php file the coding does not look the same. Tried placing the links in different locations within the file but nothing worked. I would appreciate any assistance to point me in the right direction for instructions.

Is it possible to update the information on this and maybe make it a sticky?

Thanks