I wanted to update the screenshots of my book that can be seen in the iBooks Store. According to this support article http://support.apple.com/kb/HT5213?viewlocale=en_US&locale=en_US you cannot do it on yourself. It says that you have to write an email to apple, which I did. But I got a reply, which says, that they aren't able to do this at this time. Any ideas?