Hi
1) this may need a fixing via a support request as certain parts of the listing are held seperately from your active listing for the SG and Auctiva store.
2) I don't think existing direct listings have the SG added retrospectively. Normally the SG is appended to a listing when posted from Auctiva. It is possible to add it afterwards manually by pasting the HTML code for it into the live listing via my ebay -> revise item. You need to be comfortable with HTML to do that otherwise a real mess can result.