Where to get macos SDK 10.6 for Xcode??

I am having Xcode 4.4 on OS X Lion. I'd like to install the Mac 10.6 SDK - also known as macosx10.7 SDK - because I ...

How do I install lxml on Mac OS X 10.7.4? I have exhausted all options?

Tried various avenues but no luck. I am using a MBP with 10.7.4. I don't remember the last time I had so many proble...

How to Highlight Text in Yellow Using Apple Mail?

Is it possible to highlight text in yellow (or another color) using OS X Apple Mail? There does not appear to be a s...