I am running the Wootheme theme “Simplicity” which has some custom post types for things like testimonials and portfolios. I have built some of my own custom post types with CustomPress for “Adoptions” for an animal shelter.
For some reason, when CustomPress is active, it fills in all the places Woothemes have set up for their own custom post types. So my Adoption listings are filling the areas for Testimonials, mini-features, everything.
You can see it here: http://tampabaybeaglerescue.creaturecommunity.org/ – where it should be showing some infobox content type, it is showing my custom one.