Instructions
Browse Fuji's official website to determine which grade of its "Fujicolor Crystal" paper you'd like to order. As of November 2010, the product is available in ten variants, which vary according to sheen (you can select "Matte" or "Pearl," for example) and intended purpose (the "Archive Album" paper is specifically designed to be made into a photo album and handled frequently).
Visit any of the online retailers--B&H Photo, Southpoint Photo Imaging Supplies or Amazon--listed in "Resources" and browse through their selections of Fujicolor Crystal paper. As of November 2010, Fuji does not sell this paper directly to developers.
Purchase the paper from your local photography store if they stock it. If they don't, ask them to contact Fuji and see if they can begin carrying the product.