I just downloaded both Constellation packs from Battleclinic, and they are missing a couple of textures. Presumably there should be a "cn03_glow", "cn04_glow", and "cn05_glow". The illumination maps are there, but only the top and bottom of the saucer have regular textures.
Also, you might want to repackage the alternate textures without separate archives. I don't believe you can compress a compressed .rar any further, so it's only adding an extra step for each alternative. It might also be nice to rename the downloads as "texture packs". Naming them "model packs" gives the impression that there are different variations or kitbashes, as in Zambie Zan's Miranda pack.