CP 18 installation errors

I am trying to install CP 18 in my 10.22 QA environment, according to the documentation if you put it in the content pack folder it should find it. I am getting cannot find in the file or access denied. I'm not sure what access is needed to do this through the jmx-console. I also tried to install it through package manager and received "CP18_installation.zip is invalid or has invalid version file". I downloaded this twice just in case there was an error. Any help would be appreciated.