How can I get the hexadecimal functionality of Digital ColorMeter back?

Question

I often used Digital ColorMeter to capture colours as hex codes for web development. For some reason, Lion's version has removed a whole load of functionality, including this. Some people have managed to copy over the Lion version with their Snow Leopard version, but my Mac tells my that it's required by OSX and can't be deleted. Can anyone work out a way to do the method described by these people?