how to install qt creator on mac os x snow leopard?

[mentalmushroom]

You need to start Qt Creator and tell it which Qt installation(s) to use to build applications. You do this from the Qt Creator Tools menu, Options... item.

I don't see the item called "options" in the tools menu. I attached the image.

[mentalmushroom]

If I choose Qt Creator -> Preferences, I see the Qt versions window, but Qt version and qmake path seem to be already defined. No idea what is wrong.