McHinson,
Thank you for the diagram. I will print it for my files. After looking at it I decided to disassemble the headlight again. I then realized what I was looking at. The screw I was referring to is the up/down adjustment that is under the chrome ring. The screw did in fact adjust the headlight in that the bottom clip attaches to the bottom of the reflector. That had not been attached, therefore no effect on the reflector. All good now.
Thanks again,
Dave