Do you have any other configuration files available for other projections with Tile Packs? Or, are there any tools to create one, or an article that provides the details (rather than a summary of concept) that describes what the parameters mean in the xml files?
Also, it seems to me that this is not the proper way to present the scale line (just my opinion). Compare/contrast to google/bing maps. As you pan around on their maps, you will see the lengths of the scale line grow/shrink depending upon the center point of the map. This seems to be a cleaner approach than the runtime control which keeps the scaleline width the same, but changes the distance value instead. Keeping the distance label the same seems like it would be more intuitive for people that have no understanding of projections and mathematics.
Thanks,
Mike