Telling from the source code, it looks like the thumbnails are inside a div that is far too small, and the thumbnails are the size corresponding to the small dive they are inside of. I can’t edit the source code and test it out myself.
@senff thank you for your suggestion. Yeah it seems to give me some beef with the height. I’ve found a work around, it’s messy but i’ve basically written some if statements so the browser changes the height of the iframes body at different screen breakpoints, i’ve kinda lost the ‘responsive’ nature of it.
@chriscoyier – thanks for the heads up, i should really keep a closer eye on jQuery updates. I think you were right, it seems to have been straight up removed!? It weird, when i took out the $.browser it worked just fine except the iframes height went a bit wonky.