Bug reports!
When I browse for the files for anything, photo, program, icon, etc. it uses <APP_PATH> but then uses the absolute/full path. So for instance, it looks like this:
Photo.File=<APP_PATH>\C:\Folder\image.jpg
And then it still tells me the photo can't be found.
And it's not very helpful that I can't manually type/edit the path in those input fields. They're locked and the only way to edit them is through the Browse button, which populates incorrectly with the full path. 
Also, when browsing for a file to run, it defaults to htm or html files, even though the Type is set to Filename. And how come it won't let me save it so I can do incremental testing? There's only Save As, which gets a little annoying since it creates the autorun.inf and copies CAR.exe over every time, asking me if I want to replace them.
-Deozaan
For the first one what OS?
Tip: You can also manually edit the ini file also. You don't have to use the program to create a config.
As for copying over the program and autorun.inf everytime it is an option of Compact AutoRunner Configuration Builder that you will find on Step 1.
It also seems like it would be a little more user friendly if you could toggle the buttons on and off from each button's config as well as the Icon/Form config area.
-Deozaan
I will see what I can do. - Done but not uploaded yet.