I assume you have set up a username and password for TitanTV. If not, you'll need to do that to save your settings.
Go to your programming grid (showing your local channels), and click on the "customize" button. You'll find it at the upper right margin of the program listings.
Once you click on it you'll see spaces to add a new channel and what channel assignment you want to give it in your programming grid. So for instance you could say KWCE and 20 if it comes in on your receiver as channel 20. It really doesn't matter what channel number you assign to it. The channel number is entirely for your convenience.
Each time you add a channel it will show up in your list. When you have entered all of the channels you want, click on "save". Now when you go to your grid you should have a very useful program guide.