Plant Files relies on all of us to create entries--so if you want those particular varieties added you can do it yourself. If you need help with that process someone should be able to help walk you through it--it's pretty easy though. If you're not sure of some of the information like family name, etc you can pull up an existing entry for another H. syriacus cultivar to use as a model since much of the information will be similar.
Keith if you go into the "Guides and Information" tab you will see a tab underneath that heading for PlantFiles. After you are in PlantFiles click on "Add A plant". The rest is simply a matter of entering the data
edited for clarity