The screws of the intermediate piece have another internal thread underneath so that they can be screwed into the camera at the top and the tripod can also be screwed in at the bottom. The flash is placed on the side of the camera.

Attached is a picture with the IXUS50: https://image.macovi.de/images...
And another picture where you can see the intermediate piece from below: https://dstatic.computeruniverse.net/images...
And while we're at it, the whole thing again from above (like here at Digitec but in higher resolution): https://www.bhphotovideo.com/images...