the button relocation is done by using the internal J2 pin header of the emulator and a self soldered adapter. The pinout of J2 is in the manual of HxC. It's really easy. You find all pictures at https://picasaweb.google.com/1073598785 ... directlink
What frame are you talking about? The one for the display? This should be self-declaring if you take a look at the pictures. Otherwise just ask!
The internal floppy is not working at the moment. I've jumpered it using the internal jumpers from DS0 to DS1 but this doesn't seem to work. I have to check this out. I'm planing to add some kind of switch; so you can use the internal floppy as DF0 or DF1. But I have to work this out, first.