Authors of accepted papers will have to register and present their papers during CCGrid08 in order to have their papers included in the proceedings. (One registration per paper required). Authors of the CCGrid conference tracks (not workshops and doctoral symp.) who want to buy additional pages will be allowed to do it through the registration page.
For all registration issues and visa letters requests you can contact Daniele Herzog at INRIA : daniele.herzog@inrialpes.fr. Put "CCGrid2008 Registration" in the subject of your email.
Requests about the proceedings can be sent to CCGrid2008 Editor chair : Rajkumar Buyya