first of all - congrats on the interview!
ok, honestly my first feeling was to not include any images. maybe it is just me. i hate the idea of having to submit personal information at interviews and really it is none of there business and should not influence their decision.
on the other hand, it will show that you created a program for yourself, stuck to it (so can motivate), and are just about to maintain. it may show them exactly what they are looking for. i think definately tell them about your weight loss and how you did it - take in your nutritional and exercise programs. perhaps have the pics available if they ask or say, "i hope to meet with you again soon and you might like to look at my before and after pics". if you can intice them anyway to meet you again it is a good thing.
do you have any programs that you have done for other people that you can take? if you can show that you can be objective for another person (that you don't know as well as yourself) it may also help.
mmmm, not really sure. sorry about the indecisiveness.
all the best of luck