1) Setting up for different sheet size(s) will require a separate title block for each size (unless you want to make it a dynamic block with different visibility states for each sheet size), may require a bit of trial & error to get it exactly as you want.
2) I just have plain Vanilla ACAD, so don't know if Architecture version works differently....
3) You may want to look up page setups/publishing in help....
4) maybe also turn off caps lock, unless you mean to yell....not sure why you would though
5) starting point was open the file, then look at page setups (in output tab) saw that setup2 was still there & looked correct, then select both layout tabs, right-click & select "Publish selected layouts", select both layouts in the publish window, choose setup2, then hit "Publish".....
Maybe I am answering the wrong question?