Anyone know how to take the inner door panel off a 2005 Forester without breaking anything?

Yeah, that screw only holds the actual door release in place. Then there is a big screw in the switches cubby (to pull the door shut), aiming down iirc, that bolts to a big bracket. You might also gently pull up on the switches and disconnect them (or you can shimmy them through the opening after you completely remove the panel). You should also go ahead and gently remove the door release handle. It has a tooth/clip that slides into place.. kind of pull towards you with the left side of the handle and slide towards the rear of the door, there is a big clip on the forward end and slides into a groove. Then undo the cables from the backside. Then try to find a spot that you can get your fingers into the panel, usually around the bottom, and pull from the panel away from the door and start working your way around the door. Once you have the panel free, lift upwards out of the window channel. If you have a tweeter speaker by the mirror, you'll either have to remove the surround or be really careful (and it has a sharp molding on it that I cut myself on one time). I've replaced a motor but I've never messed with the window regulator. The regulator bolts to the glass with a round bolt. You can watch this video (he means toughness on regulator - not motor) about the regulator. https://www.youtube.com/watch?v=OyhalKsKBP4