It sounds as if a call to Kodak customer service might be in order. While I'm at it, I'd like to know whether there's anything to the post on Photo.net suggesting that Kodak might do a special run of Tri-X 400 in 220. What number should I call? The only phone number that I found on their website was for digital equipment support.
Try e-mailing scott[dot]disabato[at]kodak[dot]com, who is a manager of marketing in the Professional Film division.