CRM: Convert to Free Edition before it expire

CRM: Convert to Free Edition before it expire

Hi,

I am trying the CRM in Trial Professional Edition period. I put in some data and customized some reports. Now I want to know if all those customization will be there after the trial period ( in the free edition). 

1 )Is there anyway to test what will remain or 
2) Can I convert to free edition before the trail end? How?

Thanks