Try this unblocker!

It's new and nobody knows about it yet:
http://tiredstudents.com/

It looks like a lot of school administrator type people have been watching our sources, and are blocking new unblockers pretty much as soon as they're released. So all the unblockers we've posted on this site are probably blocked and any new ones we post from that same source will be blocked very quickly as well. For this reason it'd be best if you try to make your own unblocker instead - you can find instructions on how to do this here: How To Make A Proxy

How you can get on Hi5 in school - Week 16, April 2010

We post a new list of unblocker sites just about every week, so subscribe to our feed to stay updated!

A little advice for using unblockers for Hi5

The trick is to find an unblocker that isn't well-known. Unblockers that get used a lot will get blocked faster. Most unblockers found by searching Google will get blocked more quickly because they're so easy to find. Even if you get a good unblocker it would be smart to have a backup you can use if it gets blocked.

Here are some unblockers you can use to unblock Hi5:
smscollections.info
www.zoomhere.info
virtual-browser.com
www.evilproxy.co.uk
lanebypass.info