OK have set it up at its basic and it works here without mod rewrite or base href:
http://clients.motley.site/sturgess/gallerypage.php?ID=1
I have commented out the mod rewrite but as soon as I add a base href eg http://clients.motley.site/sturgess/gallerypage.php or http://clients.motley.site/sturgess/ it causes the issue to happen :(