Ah, that's interesting. The error you're seeing is actually our flash banner ad, rather than the main site, so the only thing you're missing out on is seeing how great ANTS Profiler is! :-p
I'm not sure why it's happening (I'm no flash expert by a long way), but perhaps you're running your browser with restricted permissions somehow? Or possibly a corporate firewall / filter?
Edit: what browser are you running, out of interest? I don't recognise the chrome at the bottom...
Developer, Red Gate Software Ltd