visualmill free expired

Hi, I downloaded the visual mill free version 3 in mid-january. I
tried it out twice and was impressed, but didn't get much of a
chance to go over its features in detail. Now when I start it up,
it says I have to re-register on the mecsoft website as it has
expired. But the mecsoft site has nothing about re-registering it,
or even downloading the free edition. Has this whole program
expired?