Gents,
The new Waterloo (1.02) and Wagram (1.06) patches are now on the HPS site:
Changes for Campaign Waterloo 1.02
    - Implemented a minimum bridge strength requirement for crossing a damaged bridge of 50, 100, and 150 for infantry (and leaders), cavalry, and artillery (and supply wagons) respectively.  See the section on Movement in the Users Manual.
    - Put cavalry charge factor in parameter data.
    - Put cavalry charge multiple in parameter data.
    - Put disordered movement fraction in parameter data (now at 2/3).
    - Added the ability to define a unit as "Has Boats" which allows the unit to enter water hexes.
    - Added option to prevent defender elimination when there is no valid retreat after melee.
Also tweaked the PDT file to reduce the about face costs, to help defenders fight a delaying action. 
All in all the changes should help the defense quite a bit, which has been lacking. The new rule listed at the bottom, No Melee Elimination, is a big change.
http://www.hpssims.com/Pages/updates/up_...APBAT.html