Unfortunately I'm just reusing one of my old layouts, and I can't figure out what code was changed to put the subject in the same box as the date, so I can't reverse it. Hopefully that makes some sort of sense. I've included some pictures of what I mean in case it isn't.
This is what it looks like at the moment.
This is what I'd like to change it to.
Style id: 17205257
Layer id: 8860563