You gotta pry the top tray out - the screw is under/behind it.
You can reach up/under the opening exposed at the top when the front panel is partially lifted up, and push the tray up a bit, and/or try to pry it from the top (I kinda did both). The tray is a pain to get out, those little tabs are stiff and durable but even if you break one, the other tabs and gravity will hold the tray firmly in place when you are done. I found removing that tray that first time to be the hardest part of the install - felt like it was gonna snap but it didn't.