Frank, and others who might be interested...
Just ran into a wierd "bug" with SO 2.0. Store owner received an order with multiple items. Had to backorder 2 items. Did order split (edit products), edit totals, modified payment and shipped the first part. Created Fedex label and entered tracking number into TyTracker, changed status on shipped order to "shipped" and notified customer. Backordered items were "pending". Then owner accidentally changed status on shipped items to "pending" and the first order disappeared from SO page. Second (split) order still visible. Both parts visible in customer account in store and in products purchased, etc.
Problem corrected by deleting last status change to "pending" in edit status history. Just thought you'd like to know.
BTW Don't think the owner actually clicked on one of the buttons, but what exactly do the "Order Completed" and "Order Cancelled" buttons do? There is nothing in the readme file.