![](https://pic1.mangapicgallery.com/r/avatar/50/u84879_50x50.jpg?2)
open some random manga page (if you want to upload a new manga) and click on the little flag on the left. mark "other" and send them link of the manga you want to upload (it has to be uploaded to a hosting site, like megauploads or tumblr or whatever) and write what manga it is and so on.
if you want to upload chapter of a manga that's already on this site, everything is the same just find that specific manga first.
i hope my explanation is understandable.
how do you post manga here?