EDITED Buttons Diapers

Sa
Does anyone else use Buttons? I'm having the worst time with them! Well I figured out how to make them absorbent after a lot of research and finding out that the Buttons website doesn't provide the best information on how to wash them. Fluff Love University is a huge lifesaver at this point. However, even though I change her diaper every two hours or more if it's soiled, it still gives her a horrible red rash. The insert also bunches up during wear and that causes excrement to get on the cover so I end up changing the cover every time, too. And it gets on her clothes, wet or dirty or both. Any advice? Or has anyone else had these problems? 
If I have to sell them to recoup some of the money I spent on them, where's the best place to do it?