Well I was just about to reply "that's my question, what screw" when I realized that what I thought was glue was just a little line of dirt and I could just peel the pads off with my fingernails.
The screws came right out of mine, however, I feel obligated to point out that those screws are NOT PHILLIPS. If you look closely you will see that there is a little dot on the head of the screw, that is a sure indication that a screw is JIS. They're all over Japanese gear and also older Japanese cars. I have a set of Vessel JIS bits that I use in a bit holding screwdriver, although if you do this often enough it might be worth investing in a set of actual screwdrivers so you aren't thwarted by recessed holes. The specific screws that hold the driver plate into these phones came right out with a #1 JIS bit.
I apologize if I'm telling you something you already know, but I made it to about the age of 40 before learning this fact. Up until that point I figured that Japanese stuff was just put together with poor quality poop and fail; well, sometimes that may be the case but the JIS standard is actually superior to Phillips and in fact a JIS bit will even bite better on a Phillips recess than will the "proper" driver, so if I had to have only one set, it'd be JIS.
Even better, it appears that the broken piece that I was hoping was in there is, it's one piece, and looks like it will glue back in cleanly. Woohoo! Gotta wait until I can get some fresh super glue though. I have no luck with adhesives, it seems like the only way I ever have a fighting chance is if it's a tube that was just opened a minute or two ago.