I bought a paperback copy from Amazon and started the first "try it" section. Towards the end of the lesson you must use an image that is supposed to be in a "resource" file on the dvd. I can't for the life of me find it. The only things on the dvd are the screenshot videos of the lessons and a few pdf files. I fear they may have made a mistake and forgot to add the files on the dvd.
edit: While I still haven't found them on the dvd, I did find them on this website here: http://www.wrox.com/WileyCDA/WroxTit...-DOWNLOAD.html
download the link "Complete code download for iPhone & iPad App 24-Hour Trainer"
hope this helps anyone else with the same problem