I'm very sorry but I missed your post! Anyway, in case you haven't fond what you asked for, here there are some links to some presentations we have done (with screenshots), and some other relevant information:
- IMS Learning Design Specification
- IMS LD .LRN package documentation
- IMS LD .LRN user's and install guide
- Some IMS LD .LRN package given presentations
- Test server
Thanks for the interest.
Jose Pablo Escobedo