Easy peasy!!!
For the generic pics, I just used pics I had from each park and changed the transparency (to make it easier to see autographs on). There are also pages on most of the sites that can easily fit into a Disney park theme. For the picture pages, I made sure there was extra space (i.e., no pictures) for the autographs. If you know you'll meet characters (meals, etc.) this time, you can find generic stock pictures online. The book I posted is a Snapfish book, but I've used other sites with just as much success. I've had out September books made since last year!!
Let me know if you have any more questions.