This is image 4 from the July of 1853 entries which is the entry I actually wanted. It is from a different ship--the Beta which arrived before the Post.
Image 1 though is just the first page of the entries for the Beta. It does not contain the "cover sheet" for the Beta.
I did find the "cover sheet" for the Beta. It was contained at the end of the images for June of 1853--image 103 of 104.
Image 104 of the June 1853 images contains the statement of authenticity for the manifest.
It appears that the images were hopefully completely digitized. But if what you are searching for is at the beginning of the month--try the end of the previous month. Apparently Ancestry.com didn't quite get the end of the month quite right in some cases.
Which is sort of like too much month and not enough money. Or something like that (grin).