After download in the track info it says,
Built by Adam Pecoraro (APeX3181@netscape.net)
V1.0 August 25, 2005.
V2.0 August 27, 2005 - Added two more trains; adjusted speeds and blocks.
V3.0 September 20, 2005
V4.0 October 30, 2005 - Added missing supports, fixed support alignment, added transport section at tophat, added right catwalk on launch track, adjusted timing for faster capacity.
V1.0 August 25, 2005.
V2.0 August 27, 2005 - Added two more trains; adjusted speeds and blocks.
V3.0 September 20, 2005
V4.0 October 30, 2005 - Added missing supports, fixed support alignment, added transport section at tophat, added right catwalk on launch track, adjusted timing for faster capacity.