2.8 and comicpress?

We upgraded to 2.8 last night and now all previous comics on our webpage are not visible. The images are still seen as thumbnails when we look at ComicPress Manager, but only the comic on our homepage is visible. Clicking on Previous or First for example, turns up a blank page where there should be a comic.

http://www.buttersword.com

We’ve already tried disabling all plugins and manually re-upgrading 2.8. Comicpress manager admin says Comicpress manager 1.4.5 should be ok with WP 2.8. We have no idea where the problem lies.

Please if anyone could have a look and help us out, that would be great.