As of right now, the link seems to be working...if you continue to have problems, AIM me at NateT66 with the specific error you are experiencing...it's running over my cable modem at home, so it depends on how stable the network is at any given time...
---EDIT---
If you are trying to access the site via your school's LAN, they may have port blocking in their firewall which is preventing you from accessing the system. I will look into mirroring the data to an alternate site as well...
Also, here's an alternate port:
http://68.61.111.251:8080/occra/