Hi,
1. Yes, I don't know about 'live' auctions, but auctions as well.
2. Template "Service_Procurement_SupplierEnablement " is provided in namespace http://sap.com/xi/SRM/Basis/Global/IC, in SWCV SRM SERVER IC 7.01. In your case there might be a higher SRM SERVER version. Alle message types that you would need are in there.
Regards,
Robin