You are right, only the PPro hosted pics are affected. Normally, I prefer the tp178 facility, since I have more control over the content, better organizing in directories. Sometimes, though, I only can upload it to the PPro server.
Apparently, my notebook has started to add this 1.1.1.x/ bmi/ staff to every image link I am right-clicking, I have no idea why. Not only PPro hosted pics are affected, but every one. Maybe it has something to do with the GSM modem I am currently using to access the web.
Anyway, if you could delete the 1.1.1.x/ bmi/ parts from the URLs of the affected pics in my original post, this should be enough to "heal" the links.