Did you ever fix the mipmap errors and stuff? If not, then make the images png format. Then make them 256 by 256, and then use Texture tool 9.0.1 from Giants to convert them from png to correct dds.
For the moment I don't have easy access to windows anymore. My work needs more ssd space and I deleted VMWare on my mac. If I will have time I will try this method and re-submit the pack to modhub, but I don't know when.
Time is sparce and I prefer relaxing, enjoying these new awesome maps.