I am not sure what you meant on that last part. "Copy the <img> tag on line 22 of the detail page and update the column name referenced to display any of the other images you have added" Because line 22 of the admin detail page doesn't seem to be anything to do with the images. Here is line 22
$theValue = ($theValue != "") ? doubleval($theValue) : "NULL";
So I don't get what you mean about that. But the one picture is showing up fine, just not the additional ones I added. While I was waiting for your reply earlier I went ahead and finished the tutorial and added the catalog pages for them displaying on the front end to users, which is where I really need the additional pictures to display on the details page. After I set up the pages and clicked finish for it to begin I received a dreamweaver error and it stops after like 10 seconds in to creating the pages. I have included a screenshot of the error shows up and locks up the data assist box and doesn't complete making the pages.