Sorry, I should have been clearer. This is the AppBrain web site in a browser on a PC. I have a few lists I created. My "main" list is the one that reflects what's installed on the phone. And yes, if I add an app to that list, it shows up on the phone as a pending item to install on the next sync.
The problem I'm having is with any *other* list I create. If I create a list called "Test" and add an app to it, the app will show "Cancel Install" for a status. The "Test" list isn't pushing to the phone.
Does that make more sense?