The bs_hd_texture_instructions.zip file you have requested: Skins / Burntstrobe's High Definition Texture Tutorial - 7.38mb is not available. Perhaps try browsing all files for the game Star Wars: Empire At War and upload any files you want to share or are missing. This is the only information we could locate:
Burnstrobe has kindly put together a text document on how he tries to improve the default textures for EaW and FoC. This should prove useful for many aspiring modders.
This is a Tutorial with step-by-step photographed jpegs illustrating how to use photoshop to modify .dds texture files to make spaceships appear more "high definition" in appearance, while keeping files size the same or lower.