First! To upload Templates you must be logged in. To log in / Sign up simply click the log in / Sign up Button in the Top right corner. Then you will be eligible to create posts and upload your templates.
To Upload Templates, Just Select a "Catagory" in which your Template fits, e.g
If you have a "Trap Nation" Template that you want to upload, Simply select the "Trap Nation" Catagory.
Afterwards, Click On "Create a Post" and then Put the Appropriate Title of your Template, give suitable description, e.g the FPS, the render times, is it free or not? etc... You can also upload some videos or images of the template.
Remember to put the Download Link in the Description too! Images and Videos of the Template will give your template additional Chance to be downloaded by users and shared!
That's it! Simple as Winking! Now go ahead and Upload your Very Best Creations!
Good Luck!