How to add a new relationship in the order system?-Collection of common programming errors

Has anyone been able to add a new relationship in the order system for Commerce Server 2009?  The current help documentation included in RC1 includes a sample (from CS 2007) about adding a new collection to an order (help topic “Orders Example: Adding Virtual Gift Certificates”), and I have done something similar on my end.  It works fine and populates correctly through the CS 07 runtime, so now I want it to propogate up through the Multi-Channel Foundation as a relationship and pulled using the CommerceQueryRelatedItem approach.

Has anyone been able to do this yet or no where I should be looking?  As an FYI, I also posted a suggestion for these samples on the Connect site, but can’t afford to wait for the next refresh.

Thanks in advance.