3.8.4 to VB4 with exsisting licenses
 

We have 4 forums all have existing licensing until may to Sep 2010. Do we need to pay extra to upgrade to 4.0? While logged into the member area, I can download 3.8.4 or 4.0.

This is a bit confusing and just paying for 2 of the sites back in september 09, is a bit frustrating if we need to pay again.

Thanks for any help....