Dont know how to install certain mod

[karateman10998]

Hi I'm trying to install the village marker mod for 1.7.2 but I don't know what to do because when I download it, instead of the .jar i get a folder with .class files in it. I tried putting it in my mods folder and loading minecraft but it didn't register as a new mod being in the folder. What should I do?? btw i dont know how to post a photo on here so if someone tells me i can show you a couple screen shots of what it looks like

[karateman10998]

I downloaded the mod from the official source, im also on mac not windows

[karateman10998]

http://imgur.com/EHIFD9z,orqW6WA,jb5PZKc#0

 

inside the other folders are just more folders and more .class files

[karateman10998]

i got it in a zip file and i double clicked the zip file and got the first folder you saw. idk what you want me to do

[karateman10998]

mod's still not working, it says i only have 3 mods installed, and those are the 3 that come with forge

[karateman10998]

[LexManos]

That is a jar mod it does not work with forge, go ask the modder to make it compatible or don't use the mod.