I've been working on the game tirelessly and finally have created a CG Gallery (in place of the original 'Bonus Content' menu) which is accessible from the main or in-game menu (when paused). The CGs will unlock as you play, and as soon as you encounter a CG in the game it will be available to view full size without any dialogue boxes cutting it off.
I've also made a few tweaks to the code, trying to make it a bit cleaner. It probably won't affect the game play but at least it means I'm not lamenting about how messy my development was!
The patch should download for everyone soon.
Please note: Due to persistent variables in the code you MAY find that even if you've played through already and encountered the CGs that they are not available. In this case you will need to do a replay in order to 'unlock' them for viewing.