How do I filter my Sold Items list to show only those items for a particular buyer? It used to be possible, but the layout has changed and I can't see how to do it any more. I need this feature to be able to easily add the same tracking number to multiple items that are shipped in the same package. The edit feature could be used, but currently only allows you to add a note to multiple items.

I have just won an auction for $541 and the seller want me to pay $580 to cover the success fee that Trademe charged them. Is this allowed?