Korovan

Hello everyone! I decided to try out Divine RPG mod since I saw PBat using it. I wanted to try the new things it has to offer. Sadly when I put all of the files into the .jar and the mods folder it shows that they are duplicated? Here's the error that I get. (I renamed the jar in the mods folder to divinerpg.jar although it shows divinerpg..jar). If you can help me I need ASAP! Specs = Version: 1.4.7 OS: Windows 7 Java Version: 7 Update 25 (To see my java I used http://www.java.com/en/download/installed.jsp)