Do you mean you'd like to have a 5x7 photo in the frame that features one of you when you were little and a number in the same photo? If so, it's pretty easy to add text to a photo in any generic photo editing software - even Paint, which I
think most PC computers have. I imagine you'd have to scan in your baby pictures and then when you open them in the computer program you should be able to use a text tool to add numbers somewhere on the photo. HTH.