It is not possible at this time because the files are in ARGB 8.8.8.8 format, and even if you can save it in that way in photoshop, dds2iwi will not convert it. I scoured the internet for a iwi converter that supports 8.8.8.8 but none exist. Unless pointy upgrades his program, we cant edit the bg image. The clod file is possible, but thats it.