In this video I will be showing you how to customize GIMP’s interface to look more like Photoshop.
I cannot show you docking. Here’s a link to a animated picture that may help you further with understanding how to drag and drop docks in and how to dock them together.
http://flashingtwelve.brickfilms.com/GIMP/Screenshots/Opt-32c-8fps.gif
Thanks to saulgoode from GimpTalk.