When I went through training for EES it was said that SQL express is only supported in test environments of SageCRM and never in production. I am installing the 4.5 with SageCRM and when I use Express it says that it is only supported in production for small CRM user count. So is Sage supporting production use of express? What is Small CRM user count to them? 5, 10, 15, 20 what?