Plutonium

So, I'm new to Plutonium and its modding community. I followed some Reddit guides to install Plutonium onto Call of Duty World at War and I got the multiplayer working. One thing I noticed whilst playing was that the World at War I was playing with the Plutonium client and such was a different program than the World at War I purchased from Steam, when I launched World at War on Steam, it wasn't using Plutonium, it was showing me those same Russian servers that installs random mods and gives you insane amounts of XP. I wanted to know if there was a way to have it installed on the vanilla World at War and could launch it by default on Steam.
I wanted it to be the default version on Steam to make it more convenient than to go on the Plutonium application to play every time. Does anyone know how to fix this?