I don't think putting photos in description is against eBay listing policy. A lot of established sellers do it. I've been doing it for over 3 years and never got my listings pulled out for the pictures in description.

To put photos in description, join photo hosting service such as photobucket (free). Load pictures in the site and get HTML code for them.

Go to HTML description box in listing page and copy and paste HTML code. Go back to Standard description box and cut and paste the picture to whereever you like to put the picture on. You don't need to learn HTML to do this. Just simple copy and paste. Easy.