That's odd. I can rearrange the order of the icons, EXCEPT for the App Launcher one. It stays to the far right now matter how I try to manuever it.The dock at the bottom can be changed simply by long pressing the icon you want to move out, then moving it out of the dock, then you can move any other icon you want into the dock. Or change the order by moving them around.
As far as the rest, this has nothing to do with the theme, it is the Rom and the things that are or are not included with the Rom.