Community @ The Turning Gate

I don't quite understand what happens when an image is published as to size, etc.
For example this image from the Album:
http://garylittle.com/galleries/pcolaba … id=1&pid=3

started out in LR as .tif image size 6000 x 4003px and ended up a jpg size  1136 x 757 px. 
When looking at the image in the Album Inspector we get

What happens when you process the images? Sizes change, but what is the reasoning or the algorithm??

I have another one that went from LR 2868 x 2574 px nef to BL 2000 x 1331 px jpg.

http://garylittle.com

I would like to be able to define the image size within the cell. I seem to remember that I could do that but can no longer find out where. Here is the problem:

The images are to large for the cell. Where do I adjust that. I have tried and looked everywhere.

http://garylittle.com in gallery Africa.

I have a gallery "Variety" that I no longer want. I deleted it in LR and deleted it in Filezilla but it still shows up as damaged.

http://garylittle.com/galleries/galleries/variety/

How do I get rid of it?

I would like to have a different identity plate image for different Gallery Pages. For example for "Aegean" different from "Pensacola Bay"
I know that the identity plate image is defined in the Backlight Standard Page. I have cloned and built different Standard Pages, i.e. Contact Standard Pate, and About Standard page, which works fine from the top nav menu.
BUT I dont see how to have different Standard Pages for the different galleries. i.e Aegean Standard Page, Vernice Standard page and so on.

http://garylittle.com

I ran into this problem awhile ago. It seemed to have gotten fixed. But now, again,  I cannot access the menu system from any page in the site on an Ellipses notepad or Samsung cell fone. The 'thingy' on the upper left corner does not show.

As opposed to the last time I had this problem when the symbols did not appear on a image page, now they appear just fine, but nowhere can i access the navigtion menu.

http://garylittle.com/