Problem with WWWCENSOR

Hi everyone, I’m trying to modify wwwcensor a little,
I need to block a few pictures on web site, and I used wwwcensor example.
But I found a little bug or some kind of it…
When I’m blocking Image or any other stuff my browser (Firefox) still trying to load this image
for a long-long time (untill I press stop button) I tested this on other browsers: chrome, IE – same thing everywhere. I used this code: http://paste.org/54009
Here I added GOOGLE.COM – replace this with name of picture on any website, block it, and try to open this page in browser… He will try to load this picture for a long time.
So my question is: How can I make this thing just block the specified url/string and tell to browser that this url/string is not avilable so page will completle loads.
May somewone share a working peace of code to fix this problem ?…
I’m not a professional programmer but I really need this fix.

I use: Windows XP SP3 / Firefox Browser / And WinpkFilter driver is installed and working great.

Sorry for my english. I hope I described my problem clearly…