can't connect to site. can you help me?

hi when i was at college earlier today i saw a link meneer posted - http://johnny.ihackstuff.com/
at college i couldn't get to the site (net nanny?) i'm not sure why, but it's not a problem for me now, i can get there now on my computer at home.

however, when i was at college i looked for sites, using google, that had the address in it and i found this link -
http://www.stumbleupon.com/url/johnny.ihackstuff.com/

i liked that link and want to go back there but can't get to it. i looked in my hosts file and it was there(www.stumbleupon.com), so i removed it. i think it was in my hosts because stumbleupon is a community that uses a toolbar to let other people know about sites you like and want to share with them.

can you think of any reason why i can't get to the link? i have tried Firefox and IE. thanks