[429mustang]

The 7-strings are pretty much setup with one thicker string on the end. the higher 6 strings are tuned the same, the fat string is B. Korn keeps the same order, only drops everything down one note to an A at the fat string. I had an Ibanez RG-7620 for a few years, they're pretty bada**, although playing a full chord is slightly different to play than a regular 6 string. You could tune your 6 string starting with the heavy string to (I think) ADGCFAD
I know Wes Borland setup his 7-string so the bottom strings were the same order as a 6-string, only the high 7th was the same note and octave as the 6th right next to it. Anyway, I feel like I've written too much, hopefully I didn't confuse you.