Six Flags has updated their Timelapse with construction from March 17, 2005 - May 2, 2005. They have also updated the construction photos of Hurricane Harbor with pictures from the end of April.
Photos and Timelapse can be found at: <a href="http://www.sixflags.com/parks/greatamerica/Updates/update.html" target="blank" class="news">Six Flags.com</a>