Hi Windsor Bear,
That is actually correct...unfortunately, when an eBay seller edits a store item to lower the price, eBay does not create a "Seller Event", so we cannot retrieve that information.
Please file a support case regarding this issue using the appropriate link on our help page and we will update this information for you manually:
http://www.auctiva.com/free_auction_software_help/help.aspx
-Mike