I will say a couple things without delving into anything too personal.
Regarding Panj's comment about the appendix, more recently there have been studies to show a use. A very brief description:
It has recently been found that the appendix has a function in embryology as it develops endocrine cells in the 11th week which secrete amines and hormones used in development
So you are willing to wait on science to figure out how the universe was created (admittedly a much more difficult thing to figure out) but not willing to see if science can explain what we currently view as "useless" organs? Regardless, if we were created by God, I think we have most likely evolved since then.
seven asked earlier if there is a God, why wouldn't He just create humans to love Him no matter what. To give you my explanation, one cannot love without the option to not love. If we were forced to love, that'd be a lot more like rape. It would be the equivalent of making my computer say, "I love you, Jakesie" every once in a while. I doubt anyone would feel rewarded by that.