Help creating grid of thumbnails on HP

Hey everyone,

I want to create a homepage that features a nice big grid of images like this site – http://evrd.net/

I have had a look at a few tutes and can’t get it working.

Also as most of these images/posts will be loaded via a gravity form (and I don’t think I can set images as featured images through gravity forms) I can’t have the thumbnail generation reliant on that…

Any help would be fantastic.

Thanks