We have just released an update for ADE.  This brings either version 1.20 or 1.22 to version 1.25.  In addition to a number of bug fixes and other enhancements version 1.25 provides several new functions including partial automation of the Cross Wind Runway technique pioneered by Jim Vile; Sloping Terrain Polygons that allow sloped flattens to be created; Change Airport Altitude that generates the required pre load bgl file and also updates all the necessary elements at the airport automatically; A 'wizard' to make designing taxi signs much easier; and enhanced tool tips for taxisigns and library objects that show a visual of the sign or object(where available).  The updater is available here on AVSIM or via the online updater in ADE.  

Full details of the update are here http://www.fsdeveloper.com/forum/showthread.php?p=65220#post65220