Progress:
i tried to change the script manually to :
FCKConfig.ManagerEnabled = true;
FCKConfig.Plugins.Add('kfm');
i remove the if(false).. and now kfm load.. but there are more confusing behaviour
1. it only appears layout with nothing to click.. no uploadfile form (see blankscreen-only.jpg)
2. i finally "found" the the left panel is on locked mode.. so i right click and click 'lock'(see lock.jpg) and then click unlock .. and suddenly the 'windows' button is clickable
3. i create a subdirectory
4. i upload a file, the file is uploaded correctly but the kfm doesn't display anything but 'loading' text (see hang.jpg)
this is unpleasant task and i think it should be easier way to do this.. please let me know which step did i wrong