Cant go to developing mode no access to AOT, Help me Please

Hello everyone,

I am wondering if anyone could help me please. I am new to dynamics ax and trying to learn it. One of my friend gave me a VPC of Dynamics AX 5.0 which was absolutely working fine and i was able to go to developer mode. but just a few days back i have lost access to AOT. now i cant see the developer bar AOT and project in my Dynamics AX. I have checked the licence information and it says that the licence has been expired at 12/1/2006. But i am confused on this point that if my licence was expired before 4 yrs then how i was able to access the developer mode just before 20 days.

I would appriciate any help or hint please .

Kind Regards,

J Z Shaikh