CoursePress - "Courses" Page - Body Tag

My "Courses" page (.org/courses/) gets funky, putting up an overlay in the top and not displaying things.

In the source of this page (and I looked at source of others [seeing urls of folks' sites in these forums] where it seems to be working), I see that a bunch of classes are added on to the Body tag, to, I guess, make it all work.

However, depending on the theme being used, this may completely break, like it's doing with mine.

1) - Is this the only way (and best) to achieve the desired effect? I know that I could just re-direct to a custom page, edit links, etc., but it would be nice not to have to.

2) - If this is not a quick release fix (one just came out), could someone advise on a decent workaround?