EDIT: This is for the custom press plugin. The Plugin page directs to the home of the BB press forums and won't let me sort it into the right place.
I am looking for a way to implement some sort of IF ELSE function on custom post queries. For example, I want to be able to have a custom field that allows for an override of a default header image. If the field for the URL is left empty on the post editor the page will just show nothing. I want there to be a hardcoded default in the theme template that is a fallback of sorts for these options.