Each update has added the mechanical aspects to hero lab that will be required for adding the actual game content. Coding takes time. There is no fast way to do it sometimes. There is more to the datafiles than just data entry, there are alot of mechanical aspects that Lone Wolf Dev needs to have in place before they can start putting the book data in. Considering the 20th anniversary book is still not completely finished, I would have to agree with Crypto on the fact that they are probably going to finish the core first and then move onto other tomes. Be patient, the datafiles will get done. I believe somewhere in another thread of this nature Mathias said the next newsletter would contain information on the shadowrun files, so hang in there.
Edit I dug around the forum a couple threads down and found the one I referenced above:
http://forums.wolflair.com/showthread.php?t=14176
Believe me, I too want these files, as do my players. Thats part of the reason I started putting the data for the Runner's Black Book in myself. I will have to wait for some elements of Arsenal to actually be in before it is complete, but the basic data will be done soon. I am nearly done with the firearms in that book.