Room Treatments - How?

I need to treat my dedicated listening room. It's small, bare and the dimensions are not ideal. I have been reading many recommendations here on Audiogon and elsewhere, so I understand that I need to analyze my room using one of a number of products like Room EQ Wizard or CARA.I also see the links to companies that will sell me pre-made traps, panels or the materials to build my own.

OK, then what? How do I get from here to there? These programs seem to do a great job of measuring and modeling the room, but how do I turn a bunch of measurements into a useable plan for designing a plan for treating the room? How am I supposed to know what I need to build or buy and apply to the room?

Am I missing a middle step here someplace?