Texture Question

I recently saw a tutorial for Photoshop in which you were taught how to make the texture shown:

The instructions were: "Now, using your Gradient Tool, draw gradients of varying sizes and angles across your canvas. Feel free to go crazy, as the effect you are looking for is built up slowly. If you have done everything correctly, you should end up with something that resembles my image on the left. Don't expect it to be identical, of course - like real-life paper, its impossible to get the same crumpling texture every time."

Since then, I've been trying to reproduce the effect using PSP7 with little luck. Can someone explain how to make such a texture in PSP?

Or, if you know what the effect is called, could you give me the proper name of it, so I can look it up using Google?

I'd be super grateful.