Step one: Click the button the button that says "Download Version of Minecraft Forge for the Mod!".
Step two: Download the LATEST version of the mod, it will only be compatible with the version of forge i'm giving you.
Step three: Double-Click the minecraft forge File I linked you to.
Step four: Click "Install client, and lead the directory to your ".minecraft" folder.
TIP:To find your .minecraft folder, search(on windows) for %appdata%
Once done, open a folder called ".minecraft" Thats how you find it!
Step five: Once its done, go to your .minecraft folder, and make a folder(if it's not there already) called EXACTLY "mods"
Step six: Then, drag the mod into the folder(or copy and paste it in)
Step seven: Then, launch Minecraft, and click the drop-down where it says the profiles.
Step eight: Select the profile "Forge" and click the giant "Play" button.
Step eight: It will add options to the main menu, where you can view the mods installed!
And BAM!! You installed the mod! I hope you understood! Go to the forum page, where you can post your errors/questions/requests for the mod where I or other users can answer!
-The OMGCraft Mod Dev Team
-The IDK Team