Done.
1, 2 and 4 are still not fixed.
I think 4 could have easily been fixed by changing the following in lightbox.
js
var fileLoadingImage = "/images/loading.gif";
var fileBottomNavCloseImage = "/images/closelabel.gif";
to
var fileLoadingImage = "images/loading.gif";
var fileBottomNavCloseImage = "images/closelabel.gif";