All of this could be completed on photoshop. I'm sorry, but I don't have time to do this.
On the other hand, if you need it, I could tell you where to find photoshop.
Do not use photoshop, use Gimp. "Finding" photoshop sounds pretty illegal and Gimp is basically the same thing, save for some very advanced features you really don't need for a simple task like combining pictures.
Finding it is very easy too, here
is the English installer. Here
is the site with all other languages and the help files.