Why has my PSE11 organizer stopped putting tags in alphabetical order? It was working fine then all of a sudden started dropping new tags on the top of the list instead of inserting in proper places. I also have the program on my laptop and it works perfect there. I have compared the preference settings on both computers and they are exactly the same.
Please make sure that Organizer preferences are set as shown in following snapshot:
Also as you mentioned there are some new tags (which were not there in previous version catalog), these tags are the default tags in E11. If you want you can delete them.
If you are unable to see people tags in right panel, make sure that 'View->Show people in tag panel' is checked.