Hi Andrew,
My name is Josh Wells and I am a support engineer on the Microsoft Dynamics CRM support team. I have reviewed you situation and I have some questions.
First, I am a little confused on what you mean by saying that you are using the "XRM method of crmForm.all ". Not quite sure what you mean here. Realistically, you should only be using crmForm for CRM 4.0. If you are developing new jscript for CRM 2011, you should not be using crmForm.
In addition, what Jason mentioned only exists post UR12. What UR is installed? Post UR12, you have to enable that option in order for crmForm to work properly.
What exactly are you trying to do? We may be able to help you more if we understood your business scenario.