Yes they did have Haunted Harvest in 2004. Nightlights ceased operation that year too (there was no Nightlights, Frightlights or Brightlights for STITP, HPITD or CCL that year, all remnants were removed in late 2005 with some being used in the Boardwalk now). You entered Haunted Harvest through Wildcat Catering, and it took over all three of those catering areas back there. I believe you exited through Pioneer Frontier Catering over by where Howler is now. I heard lots of good reviews about it and that it was popular that I think the park, at one point, was planning on bringing it back for 2005 by offering a survey to all Sweetmail subscribers about what they wanted to see for Haunted Harvest 2005. But I think at the last minute, they decided against it since they wanted to keep HP in the Dark a "family friendly" event.
COOL DOWN with the Boardwalk: The SEA-Qual!
HEAT UP with FAHRENHEIT!
TRIPS TO HERSHEY IN 2009:
February 14th (Choc-Covered February), April 11th (STITP/Harley), June 7th, October (HP in the Dark) and November (Candylane), 2009