[Q]

The fighter image problem is solved: just put the component folder in the image folder of your campaign as SJ said. However the music is still missing for me. You have some strange entries in the campaign data file for the systems music files.
And for the end it is just a minor imperfection: you could write at the end of the text that the next campaign should only be chosen when it is really here. But most people will have no problem as it is now.