Question : Exchange 2003 to Exchange 2010 Migration - Stuck at SSL & URL

Guys: I'm following the steps here:

http://www.experts-exchange.com/Software/Server_Software/Email_Servers/Exchange/A_2881-Migrate-Small-Business-Server-2003-to-Exchange-2010-and-Windows-2008-R2.html

I'm stuck on step 7: SSL Certification.

So here's the deal, for example our old Exchange 2003 server's OWA URL is mail.mydomain.com/exchange, we purchased a SSL certificate from GoDaddy using "mail.mydomain.com" and installed it on the Exchange server.

Now doing the migration, can't i just use the old SSL cert that i purchased from GoDaddy and just import it into Step 7? Or should i buy a fresh new SSL cert and call it mail.mydomain.com and apply it to the new Exchange 2010?

Right now my OWA is functioning in Exchange 2010, whenever i access ex2010.mydomain.local it goes straight to Exchange 2010 OWA, which is OK since i have not opened port forwarding to the new exchange server IP so no one on the internet can see the new server.

HELP!

Answer : Exchange 2003 to Exchange 2010 Migration - Stuck at SSL & URL

From exchange 2007 and up i always use a multidomain certificate, thats cheaper than a wildcard certificate.
I use mail.domain.com, autodiscover.domain.com and internal.domain.com so that are 3 names in 1 certificate and all ssl options work. Also for autodiscover you have to make an A record.