Brian,
I didn't want to mess this up either when I did mine, so I asked for some help also. The procedure is the same as installing other place files.
Go to 'windows' in the top bar and select 'placefile manager'. Then select the folder ICON in the upper left corner. You should have a blank place where you can paste this into it....
http://www.spotternetwork.org/feeds/grlevelx-dot.txt
click OK... now put a check mark in the far left box next to the new entry in the placefileOK manager and at that point, dots should have replaced the icons that were there previously.
If that doesn't work, PM me and we can check it out.