I tried this avenue and am also getting the same problem. You can see it here:
http://dentargkoa.com/roster.php
It looks as if it's a problem with the way the app is calling the links. I have Roster installed at roster.dentargkoa.com and if you mouse over a few of the links, you'll see that some are correct while others are calling for dentargkoa.com/link.whatever. I imagine that is what is causing the theme to break also and the graphics to not appear properly. As for a fix, I'm not entirely sure what that would be, just have the observation. Maybe someone else can look into it and see what can be done.