I am trying to connect to a PostGIS database from ArcGIS Desktop 9.3.1 Some web-searching suggested that zigGIS would be useful. Unfortunately zigGIS has reached the end of life, and the author of zigGIS recommended the use of freeware PgMap here
Further research suggested that ST-Links has renamed PgMap to SpatialKit and is now charging for it.
Is the freeware version of PgMap still available to download? If so where?