I was using the unity Indie trial, and I really like it. But it appears that timing is against me. The trial expired right when Unity 2.02 was released. I know I will need to make sure it will still run on the Mac I use for it,without bugs, etc. So I got a new trial key, and now I don’t know how to activate it. Any tips?
If you open unity (first download the new version) then you go up in the upper left corner and you see a text that says “Unity”, click on that and then click on “Activate unity” or “Enter serial number” (don’t remember) and then you just type in your code.
I tried that, but the option is no longer there. When Unity starts, I get a “Unity Trial” splash screen that shows how many days are left on the trial(0). The splash screen won’t let me do anything else, except buy Unity… :?
In one last, desperate attempt to activate, I clicked the “Internet registration” button. Guess what? It let me enter my serial number! 
Now I’m happily testing away… 