There is a very dim bar that appears in the middle of the blank white field. You have to wait for it to load (about 4 minutes) and then the Elio car image will appear and the left buttons will work as designed.
4 minutes??? What are you trying to view it on, an Etch-a-sketch with a dialup connection?
What bebopag is asking about is once you're in the Configurator there is a column on the left side where you change categories (Interior / Exterior / accessories / etc.
bebopag what are you viewing it on? Your phone / tablet with wireless / or desktop PC?
Depending on the device, it might be too much for it to handle, especially on a phone; it's a LOT of graphics.
Going back to the device, you might try clearing your cache; deleting temp internet files; make sure you don't have anything else open at the same time.
I have heard of other members having problems viewing it on a phone, and went to a PC to view it. Depending on the age of your phone, your signal strength, free space, etc. could be your problem.
I'd suggest trying to view it on a desktop PC for the best results.
If you don't have one, find someone that does and you'll possibly have a chance to show someone that doesn't know about the Elio their first chance to see one.