Okay this will not allow you to view anything stored in the files.sharenator.com(games and pics) section of the site but you can still get on and comment and share. So first open command prompt. If it is blocked then open a new notepad and type the following:
Then find your file and double click it. You should end up with something like this:
Okay now in the box type ping Sharenator.com and hit enter. You will end up with something like this:
In the URL box in the web browser everywhere it would normally say sharenator.com you would enter the number:
Now instead of doing all of the steps you could just enter the numbers above I just wanted you to know where I was coming from.
And to tell you how to get on command prompt at school ;)
If anyone can find a better method please post it and put a link in the comments I will be interested to know
*Edit* Special Extended Version
To get games to work...
Ping Files.sharenator.com ← Ip 173.212.215.90
On the browser with the game you want up open the page source.
On Firefox its View → Source. Hit CTRL + F (find) and type .swf
Copy the whole link and paste it up in the search bar. Then replace the Http:\files.sharenator.com with 173.212.215.90 and hit enter.
But you've been using cmd too.... xD