I can't speak for a Mac.  I have a couple kids who swear by them but they're vegetarians, too. (I don't know if that is connected, but I've been afraid to try a Mac for fear of having to give up hamburgers)

I clicked on the addresses you listed, went to that page and right clicked the photos.  I chose copy image location, came back here and clicked the little green tree on the toolbar, pasted the address, hit insert and Voila!

then I did it again

This is from the thumbnail on the page you linked to.  If I click the photo to open it then right click I get a larger version

I've done it so much and it is so simple, I have to stop and think about it to explain it.