Ahh, I see what you’re trying to do. I’ve never done it, and can’t answer your question. But I did find something that might steer you in the right direction.
This looks like a good start:
http://www.advancedcustomfields.com/resources/using-acf_form-to-create-a-new-post/
Then this answers the first question I had looking at the example:
http://support.advancedcustomfields.com/forums/topic/front-end-creat-post-2/
As far as the repeater goes, it’s pretty awesome and it took me a bit to wrap my head around at first. It’s basically a group of fields that a user can keep adding new instances of.
I hope this helps and good luck.
