1) I can't change the signification of days/month (translate ENG=> FRA) in my MeasureMonth/MeasureDay, yet I followed a tutorial that explains how to do but the problem is that I can not find my skin in the place mentioned in the tutorial
1. Take a look in Measures.inc
Should be in the same folder as the skin. As nothing else is defined.
2. Look at the meters. Change what FontFace=Bleeding Cowboys to FontFace=TheFontYouWant. The creator did not use variables. I would recommend you do this, as it will make your life easier in the end.