-snip-
A third option is to place the images inside tables. It takes a little more work to organize, but it can allow for a result closer to what you want in almost any scenario.
If you still need it, I can give you more details on how to use the tables for this case.
While writing
this post I had a feeling that using tables could be a way to make images appear side by side ( I wanted to show old version beside new one), and I even tried using the appropriate button and checking the preview, but after three/four times when the result wasn't what I wanted, my lazyness made me give up.
I'd appreciate it if you could show me how to do it when you havesome spare minutes.