I sure wish that I had found your posting last week. I just went through the exact same problem with iPower. Actually, I am still IN the problem. I purchased Shopsite Version 10, developed the site in Version 10. Well into the project, one of iPower's level 3 support people talked me into purchasing a dedicated SSL. Once the SSL was installed, the version of Shopsite dropped back to 8.3 negating much of our work.
Dealing with iPower's technical support people has been maddening. The people that answer the phone are not able to do hardly anything. They up you to Level 2, but they cannot do much more then off to Level 3 and the are too busy dealing with real problems to address the situation.
iPower says that Shopsite Version 10 CANNOT run with a dedicated SSL. Can anyone tell me if this is true or iPower is just being cheap and have not purchased something that they should have?