How to Add The Server to your Favorites List manually in COD4:
Step #1 -At the Top Of the Page Click on SOURCE until you Select Favorites.
#2 - On the top right corner of the page,click NEW FAVORITE.
#3 - In the new Favorite Box Type the server IP Example:
208.167.251.133:28930 Then click on OK.
*********************************************************************
How to join COD4 server via an ip address.
What you do is bring down the console using the ¬ key, (next to 1 on the keyboard)
Then type connect and the server IP. For example our server would be connect 208.167.251.133:28930 Then press Enter to connect.(Make sure you put a space between the word connect and the ip address)