As a 'Guest' you don't have access to the simulator, as a 'Customer'/'Partner'/'Employee' you do.
=> You might want to talk to a NetApp representative (e.g. your NetApp contact as you might be a 'future customer'), they might be able to do something about your access and/or might get you a simulator copy 'offline'...
Hope that helps
NCI (NetApp Certified Instructor...)