Last. Heard , not much have change , call up THC and they will tell you where to go ,
There was a three day only rule for anchoring , but that may have changed now the summer season over ?
Last person I know that visit was Milkdefieslife , might be worth PM him .
Echoing sailaboutvic - you MUST call up the harbourmaster before going into Trapani - otherwise he will fine you. Response may be slow but best to persist until you get a reply - his alacrity in fining you is in inverse proportion to his VHF response time!