Purchasing upgrade to VB5 - Can I still use VB4 until it's ready?
 

I have a forum with about 10,000 members running on VB4.2 at the moment. I want to buy the FB module, but I also want to upgrade to VB5 connect, but I don't really want to install it until it's past the beta stage and ready for general roll-out.

Can I buy a license for VB5 connect + FaceBook module now and download and use the VB4 FB module until VB5 is officially released?