So to clarify:
You get to the main page just fine, and select your game, but the game doesn't load?
If so then clearing cache, cookies, and browsing history should have resolved the issue. Try clearing those items again, and restarting the computer again. (unless you have already done so several times) and check.
If that doesn't work please send in a bug report using the link in my signature and fully describe the issue and the steps you have already taken please.