Hi McCrunch,
This is related to the import issues here:
http://larian.com/forums/ubbthreads.php?ubb=showflat&Number=649147#Post649147I updated the description of issue 1. to include Texture Atlases.
"I can't even open the standard DDS files." Do you mean the Texture Resources you made for those dds files? Because those are also affected.
We are currently working on a fix for this.
Our sincerest apologies for the trouble,
Kevin