Using EDITemplates

One more question:
I downloaded the UNEDIFACT-Templates from wM and created 2 Packages with the according folders (UNEDIFACT, X12 etc). Now I used the copyTemplateMgr and specified that I want to use the INVOIC. It’s copying and then I have a file in the other Package. If I use getTemplate (INVOIC, EDIWorkTemplates,UNEDIFACT, 93A) I do not get an error, but the template-object is null. Any ideas?