Good news. Pressing caps lock activates 3# so the trace and switch work, it's just mapped differently.
If only I could get this to work.
let's take it slow:
1. open the device manager and plug in your keyboard.
2. if it shows up as a normal keyboard then try the magnet/both shift keys to make it jump to its bootloader.
3. in the device manager a new device should show up and the keyboard should disappear then.
4. if the new device has the right drivers a new group should named "Amtel USB Devices" should show up with a device called "ATmega32U4".
5. if the drivers are missing you should see the device with some warning or something (don't know exactly right now).
6. the drivers are in the flip directory (something like C:\Program Files (x86)\Atmel\Flip 3.4.7\usb).
7. after installing you should see the "ATmega32U4" in the device manager and you can flash your firmware with flip.
hope this helps a bit. when you encounter problems at one of those points state them