It looks like he needs a find a place to host his images. And he is using PhotoPost to do the hosting.
But now you are offering to perform that service for him which is probably a good thing. Especially since images on PhotoPost expire after some time, or can easily be removed by the third-party.
He can either create his manuals using BBCode or if you give him permission, he could post them using his own formatting in HTML. But no matter what coding he chooses to post them with, he will need to have his images hosted somewhere. Which sounds like something you are already doing for him.
