Steven Zahm@ Ruthie
re: So you mean if I choose each photo to be 400X400, I need to upload the photo at that exact size to get the results I want, instead of uploading a high-res original image and have the system do the autocropping?
No, you can upload the original image. You just need to keep in mind that when the auto cropping is applied that is is center weighted, meaning, when the crop is applied, the image will be scaled down to fit the size you choose and then the exceed cropped off the sides and/or the top and bottom evenly. So if you are uploading images of families, you will need to make sure there is enough image that no one is cropped off.
re: Also, how hard is it to add tat alphabetical index above the photos, seen here?
It is not hard at all. It is a setting on the Connections : Settings admin page under the Display tab.