Brian:
There are specific dimensions for the National CAD standard titleblocks. Actual sheet templates for different sheet sizes are included on the CD that is part of CSI's Uniform Drawing System, which in turn is part of NCS 1.0 (Let me know if you would like to see a sample, and I could email it for your review).
It would be valuable for users to be able to designate their own office titleblock (vs ConDoc), assign that titleblock to the class/ layer normally used for titleblocks, and then to locate the fields used by the Issue Manager on that titleblock.
It is somewhat discouraging to hear that VW Architect does not "happily" support the National CAD Standard. The marketing literature says "based on established CAD standards" and "a variety of standard architectural title blocks". Our office has been quite satisfied with the National CAD Standard titleblocks (slightly tailored for our use).
Part of this is that a firm's titleblock is just a component of its overall identity program (stationery, etc.) and graphic look. So it does not easily change.
I really think this is one where the software needs to accommodate the user's standards, not the other way around.