What I do is to open the two pictures with PhotoShop. Crop the pictures, then copy them into a newly opened picture, they have become one. Remember to resize so that they will be small enough to be accepted by the projects page. Good Luck
Penny, I see you have your answer - even though you were able to post both pictures and they showed up to you when you posted your project - only the 1st one will show to the public - you will have to answer your own question and post any additional pictures there - you can load more than 1 picture in your answer - you don't have to answer it multiple times to add more.
You can post two images by answering your answer itself.When you add answer to your project you will able to add another image to it
naveen