What’s up with the download? Instead of the usual .rar file containing a patch (or a patch by itself) this is an extensionless file, kinda weird. People no longer use other formats but .ups is not the only format a patch can be in, it would be better if you don’t remove the file extension. It’s just inconvenient.
Also, what do you mean when you say Solidarity doesn’t work? What version of the Skill System are you using? What have you tried? What did you observe?
I just tried the skill and it works perfectly fine on my end.
And for the chapter names you will want a patch that makes it use text instead of graphics: