Upon KWarp's request, I have finished creating the mesh that will warp - KWarp, if you will - the pages into the shape of the book. Since KWarp can't give directions to save his life, I made the mesh for the reverse side of the book, so it'll be a small process to get it to work. If you don't feel like doing it, or don't have Photoshop to be able to use the mesh, you can contact me and send me the pictures so that I can implement it for you. For the adventurous folk among you, I have written the directions to make the book shape for you. Enjoy!
OK artists,
So, you're sitting here, you've got this shiny, "finished" image, everyone likes it. You think you're on top of the world, right? WRONG! Why, oh why, Mr. or Ms. artist, is your image so FLAT?! Well, fear not, for I have the mesh that will fix ALL your problems. To implement it, follow the proceeding steps:
1. Save this mesh file to your desktop or somewhere else where you'll be able to find it and get to it easily.
2. Open your image in Photoshop.
3. Set the image size to 292 x 366 pixels (that's in Image --> Image Size, if you didn't know). I would recommend flattening it first (Layer --> Flatten Image). Make sure when you do this, you make it a layer, as opposed to "background." (If it says "background" in the Layers palette, double click on it.)
4. Set the Canvas Size to 300 x 400 pixels
5. If snap isn't on, turn it on now. (View --> Snap)
6. Set your image right up against the left side of the page, and nudge it up two pixels from the bottom.
7. Flip the canvas horizontally. (Image --> Rotate Canvas --> Flip Canvas Horizontal)
8. Now you will apply the mesh. Open the liquify panel. (Filter --> Liquify) Within this panel, there will be an option to "Load Mesh" in the upper-right corner of the panel. Load the book.msh file I provided earlier. Now your page should look like a book page.
9. Click "OK" in the Liquify panel, returning you to the main window.
10. Your image should still be backwards, though. To fix it, simply flip the canvas horizontally once again. (Image --> Rotate Canvas --> Flip Canvas Horizontal)
11. Save your image, and you're done! It should look similar to this Dwelling of Duels artwork which I applied the mesh to as an example.
KWARP EDIT: Flash can only identify transparencies in PNG (and gif), make sure you give me PNG to work with. >.>
Once again, if you're having problems with the process, have any questions, or have a picture you want me to warp, feel free to PM me or whatever. Good luck!
[edit]: small adjustements made according to Usa's post