This Unity tutorial will show you how to properly set up your Images for scaling, tiling, and positioning in your Unity 4.6 UI
See here for how to do this for the old GUITextures: https://www.youtube.com/watch?v=hzvQnYkS9O4
And here for how to do this for the old GUIText: https://www.youtube.com/watch?v=_9mOh7_xX2o
Twitter: https://twitter.com/Devination3D
Time Breakdown:
0:45 - Make sure your images are imported as sprites
1:15 - Introduction to anchors
3:00 - Setting up our sprite for 9-slice scaling and tiling for the Image Type
6:00 - Customize your anchors to avoid strange scaling issues
6:50 - Preserve Aspect of the image
7:35 - Setting up Text to scale and be positioned correctly
10:20 - Thanks for watching!