I'm having this same issue with getting my Nitro Raiden 0's onto my new Burton Deuce. I have called every person in the tri-state area, and no one has these adapters if they do know what I'm talking about.
Sent an e-mail to Nitro, no response yet.
Gonna call Burton tomorrow, and hope for the best.
Anyone that can refer me to a shop close to NYC who has them for sure or reputable online dealer I'd appreciate it much!