From the help of the author we made a small fix to the css file that made the plugin work fine with my premium theme i was using, this may be a fix for others as well.
Depending on your header the z-index may be covering the page peel effect.
Change the css file of page peel, to z-index: 999, and z-index: 998 respectively for both z-index's in this file.
Should now show up correctly.
Works great in latest version of wordpress.