[i]Tags (column heading) / Maybe "Current tags" would be clearer?[/i]
Well, the list shows all tags....
[i]I know you need to keep things brief but when I followed instructions, I had _no_ clue as to why I was doing this

[/i]
Sorry, I don't understand...
[i]Would make more sense (?) if all the current tags are listed in the column FIRST and then "add new tag" is last. Also, new tags are added above existing tags, is there such a thing as a sort function that can be done on saving the list (although the Save isn't exclusive to the Tags).[/i]
What if you have many tags assigned, then you would have to scroll down for the "new tag" selection.
The tags are sorted alphabetically.
[i]No mention is made about DELETING one or more tags.[/i]
We are simply not done with the feature. Probably there will be a extra tag management page for that.
[i] don't use the Tags (not used Search yet) so when I added one to a specific image (...) [/i]
We might add that at some time.
[i]There was nothing saying to save your selection, use the Save button found under "Thumbnail" (I thought I missed finding it as I didn't know that one was serving mutli-purpose.)[/i]
We just assumed that it would be basic knowledge that you have to save it...:-)