http://www.lilies.org/mainhtml...
They used to open it to the general non-member public after a period of time. I don't know if they still do that.... at least I don't see that information on the site.
Even if you are not interested in buying seeds, you can click on each division and see photos of many wonderful parent lilies, many of which are hybridizers' seedlings and not commercially available. To me that makes them even more interesting.