Important Note
Any UPlan version prior to 2.63 has a critical error when used with a projection in "Feet." Please discontinue use of any version of 2.6 predating 2.63. This same problem occurs in version 2.21 and should be checked for.
The most recent version is: 2.64f Released 03/25/2008
System Requirement: ArcGIS 9.X, Spatial Analyst Extension, MS Excel (for reports)