Slide show is currently set to assume all images end in jpg and are numbered 1 thru 100 inclusive, all of which can easily be changed. The big thing is the assumption that files are named 1 through to 100 with an extension of jpg, the reason for this is that you don't need to add the names of each image into the HTML file.
I have however left code that you can use to detail each file individually, this was in fact how the file started out.