No luck. I saved the template as a different name. I close and reopen it, it does retain the different name, but it keeps the same end part of the template ID no matter what I do.
1. Original Form Template ID: urn:schemas-microsoft-com-office:infopath:Knowledge-Check:-myXSD-2009.07.14T14-44-42
2. Changed Form Template ID: urn:schemas-microsoft-com:office:infopath:KnowledgeCheck-11022009:-myXSD-2009-07-14T14-44-42
I also tried starting with a fresh SharePoint Form Library. I publish the template as shown in 2 above. When I open, it gives me the template conflict message, showing 1 above. I reopen the template that's from my computer, and it's the way I want it (2).
So for some reason, it changes the name in the properties back to the original when I publish it to SharePoint - maybe based on the ID? Grrrrr...