The post above has a direct link to 1 of the activity download files.When you use the 'ztpig*' search, try the advanced search option and search in the 'file name' dialogue box using ztpig* - when I try that I get 4 hits for activity links for the 1940s route activity, similar to this:
Microsoft Train Simulator - Freight ActivitiesMSTS L&HR 1940 Freight Activity - Eastbound Piggyback
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Size: 203,991 Date: 03-08-2010 Downloads: 322
MSTS L&HR 1940 Freight Activity - Eastbound Piggyback. This L&HR 1940 freight activity is an updated version of the set ZTPIG1.ZIP, ZTPIG2.ZIP, ZTPIG3.ZIP and ZTPIG3A.ZIP. This requires the latest version of the route (2/27/2010), including all updates through 1940LHR7.ZIP. Requires MSTS Bin, two payware downloads and seven freeware downloads. By Rick Franzosa - ZosaTrains.