"Deauthorize all computers" Problem

Hello, i've been using my iPhone for quite some time now, and due to the fact that i work at a Net Station with DeepFreeze installed ( i think its similar to the Sandbox software where all changes are removed on each computer restart) and i authorized 5 computers already. I had already used the "Deauthorize All Computers" last November. The problem is that i want to authorize my own computer and i cannot do so. The computers i have already authorized are not accesible due to the fact that DeepFreeze (thanks a lot -.- ) erased that. What can i do?
Thanks in advance.