RapidWeaver text/image formatting

I'm currently trying to rebuild my site using RapidWeaver (I used to use iWeb) but when I paste images in, they appear to just go straight down one by one, instead of side by side as I want them to.

If i want to paste 5 images, so that the first three are side by side with text below each image, and the other two are below them, also side by side, with text underneath, what should I do?

Thanks