Hi, Question #1- don't worry about that feedback score, I just ignore it, mine has never been correct, your current FB score will show as normal on ebay. On the powerseller icon I can't tell you, but I am pretty sure you will not have to worry about that either.
#2-pretty sure you will not have to pay for extra pics-hosting your own-but recheck this one
#3-sorry someone eles will have to help you here
Hope this help somewhat, Donna #2