Make sure that you have your "COD Real Time Editor program" in the same folder as your PS3FSLib.dll, PS3Lib.dll, ps35mapi.dll, ps3tmapi_net.dll and ps3tmapix64.dll and that might fix it, those things are installed in the folder where your Target Manager stuff was installed, so c:/Program Files/SN Systems/PS3/bin/ and you will see them there, if you want to, you can copy and paste those things into a different folder where you want to keep your RTE tools, that is what I did, make sure all your tools are in the same folder with those files, I find it helps big time, if you already have done this, sometimes you just simply need to restart your PS3 and Target manager, or even just restart your computer and try again, but if you have not done any of this yet. I recommend you do. Hope this helps!