penders - 5:13 pm on Oct 11, 2011 (gmt 0)
...I guess the school's network filter does not allow the .css to pass.
That would be an extreme filter - I doubt they are filtering CSS files!?
At home the website works great.
You are viewing the site across the internet I assume, not locally? Can others see the site OK?
One reason for CSS files not to work at all is if the server is sending the wrong Content-Type response header for the CSS file (it should be "text/css"). Although I doubt this is the case if you are on a shared server.