Montserrat

Yup guys, noobie here. I must be a total idiot but i cant make the program work, i want to open my scripts from the archive, but every time i try i got error: "KSP folder no found.Please go to the settings and make sure it's set." I have no idea qhat im doing wrong, of course i've set de ksp directory one thousand times, saved, closed and opened the saturn....unchecked the "read only" check in the ksp folder...Can someone write the exact instrucctions to install it for me? i'm feeling like an idiot... Thanks in advance....