Ok so this time I decided to push past the error. Just kept upgrading, manually stepping through the scripts and it appears everything is finally upgraded *knocks on wood*. I just hope nothing important was missed along the way with these goofy errors.
And I just realized there's ANOTHER version of Photopost out now! LOL
Well at least I'm up to 5.5 now. So not too bad to upgrade this time I hope.
Thanks.