I'm somewhat lost with the "upper" and "lower" part but basically the 7 inch headlight replacement has two rings.
The inner ring has 3 holes in it and mounts on the casquette like the old headlight ring did.
The outer (front) headlight ring is what the bulb is mounted in.
The outer (front) ring does not have any screw holes in it.
Instead, it is hooked to the inner ring by a hook that engages the inner (rear) ring at the bottom. A metal strap with a bent end and is held in place by a screw in the top hole of the inner (rear) ring, hooks onto the top of the outer (front) ring and holds it in place.
The bulb is held in place in this outer (front) ring by at least 4 (or more) W clips which should be approximately spaced.
The small bent center hook of the W clip hooks against the back of the headlight.
The two free ends of the W clip hook under the bent rim on the outer (front) headlight ring.
Check out the photo following my post in this link to see how the clips should look.
https://forum.classicmotorworks.com/index.php/topic,12715.msg142098.html#msg142098While I'm talking, if the bulb has a 3 prong electrical connector on the rear, the part of the bulb which should end up being at the top when the rings and bulb are installed on the motorcycle has the 1 connector that is running at a 90° angle to the other 2 connectors.
It should look like this