Where are the textures?

When applying image based textures on a simple cube the textures don’t show up in the window.(have texture mode on)
They will render; however.
I was curious why this is.
Oh, and I have a light in the scene, so it’s not that.

They don’t. You need to UVmap them and view them in textured mode to see them in the 3D window. However you can see what’s loaded in the preview window at the left of the buttons.