We haven't made any changes to the Auctiva website that would account for this behavior, so I'm not quite sure why a handful of users have been unable to see the "Accept Offers from Buyers" box in their listings over the last couple days. This option is only available for "fixed price" and "store item" style listings so, as long as either of those sale types are specified, the "Accept Offers from Buyers" should show up directly under the "Starting Price" field.
I just reviewed the only fixed price listing you posted today and noticed that the "Accept Offers from Buyers" box is checked and that you were able to enter an amount in the "Auto Decline Offers Less Than" field, so I assume this option started showing up for you again since you posted to this thread.
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