On #1, I'll check out the KISS channel tonight, are you saying that XM has screwed up the channel name and it now shows as "KIIS"? If so, that is likely a screwup on their end that will get fixed.
Regarding question 2, I assume your talking about the logo generator. The "Save/Load" functions let you save/re-load any changes you make to the channel mapping in the logo generator itself, when you click "Save" (If you have not loaded a file) or "Save As" you are prompted to pick the filename you want to use, just as it you were saving a file in Word or Excel.
Actually there are 3 channels... 11 is KIIS (that IS correct because my car downloads the new graphics automatically), 12 is z100/NY, and 13 is WLTW. I put the PNG files here to verify.