Im sure its because when I initially installed it the sim was in location A, and it put it in the right place, well with all the problems I had been having since last week the last time I fresh installed I put it in A/steamapps/etc etc etc. So now there is also a community folder there as well. Im sure if I uninstalled the installer, and then reran it, it would find the new correct location, but Im being lazy at the moment ;p