Changing IP Addresses on Brightmail Gateway

Good Morning,
We are a current Mail Security for SMTP 5.x customer.  We received notification of a free upgrade to Brightmail Gateway.  We downloaded it and currently testing it.  We setup this product on a test IP address and test Hostname.  When we are ready to move it into Production, we want to be able to use the current Mail Security server name and IP address so we have little impact on the enviroment.  In Mail Security, you were not able to do this because the Spam Quarantine would not register the new IP address (Fixed by hacking the MySQL Database).

Question, I'm I going to have the same problems as before with Brightmail Gateway or did the developers take this into account?

Thanks in advance!!!!

Doug