change the upload path of images from the item-post.php

the route it has is http://www.url.com/oc-content/uploads/2/example.jpg theme osclass - RUTE ORIGINAL

I want to change the route to an alternate. that the images through the publication of the article is uploaded to another folder.

example -> http://image.url.com/archives/pictures/example.jpg <- please I want you to be saved on this route

You must search for it in core and do some updates... never did it

it's still a request since 2012 in forums no plugin for this solution now. headache