What you are asking for can be done using the ATO --> Post/Page Info Items section. Based on your image:
1. the author and date and time is set in the three Byline fields. I have mine set as follows but you can tweak yours to taste:
<strong>%author-linked%</strong> posted this on <em>%date('F jS, Y')%</em>
2. The sociable plugin has options under its "Position:" section on its plugin management page to add it to various pages, which works, or
, you can add it to one or more of the footer sections -- instead -- by adding this, or something like it, to the end
of the footer string(s):
The symbol is a pipe character, to be consistent with the rest of the default separators.
However, be sure to read Flynn's notes on adding this to footers, they're about two thirds of the way down the "Post/Page Info Items" page.
Hope this helps.