Hi Janale - You can insert pictures of any size up to 1024x768(Auctiva's maximum size) into your DESCRIPTION, with a caption if you wish. On your listing page, in your DESCRIPTION box you will find the word "user links" in the upper right corner. Click the icon to the left of that word to insert a photo. Clicking the icon will display a list of your saved photos. Select the photo you want and it will display in your DESCRIPTION box at the location of your cursor. If it is not the size you want, you will have to resize your saved picture and try again.
The "normal" method of inserting a picture, of course, is to use the add-photo section of the lister. The software will downsize your pic(s) to a 400x300 thumbnail with a "supersize" link to display your image at its original size. The lister is set up to use this method, and most listings created in Auctiva reflect this, but the choice is yours. Just keep in mind, the bigger the pic, the longer the download time. A dial-up buyer may not wait around for a long download and just go to the next seller's listing. I wouldn't advise a large number of really big pictures for this reason. The sample listing you mention used the first method of course.