I am using the default theme but now this page http://merrylegsfalabellas.com/index.php?album=spring-falabella-foals&page=1
isn't displaying the images correctly - ie they don't line up..
This page http://merrylegsfalabellas.com/im-telling-you-its-a-pig/
does but has more images? - any ideas anyone? please? I've tried removing the text from 'Dancing Queens' main pic but this does nothing....

I am sorry, I don't understadn exactly what your problem is. I don't see anything wrong with Safari 3, except that the text for Donnie Darko is longer than that of the others.

On the other link I see two columns of images. If you actually want to have three columns you need either to make those thumbnails a little smaller or change the css of that theme.