[dmix]

I didn't see any photos that didn't come from istockphoto. The logos were his customers logos.

Most of the UI elements seem to come from other PSDs of stuff he's already created.

Inspiration from Basecamp and it looks like some Flickr screenshots... totally normal.

[flyosity]

I also didn't see any purchase process for the Eiffel Tower picture he found on iStockPhoto. Finding random images on the Internet and copying them into a design is not how professionals build websites.

[oneplusone]

You are allowed to use stock images in your designs to figure out if you are actually going to use it. It has an enormous watermark on it that you can't see because of the compression in the video.