Happy to help. I don't know what XSLT/XML editor you may be using. I favor Stylus Studio, and have been using it for years. It has a drag-and-drop mapping for XSLT that is reasonably good for creating stylesheets for documents such as the ACA. You set up the input document on the leftof the window (either the XSD or an exemplar in XML) and the output document on the right (ditto) and most of the work can be done with mouse drags.
If you need XSLT assistance, I frequent the XML Forum on Tek-Tips where I specialize in answering questions about XSL.