The 30-year-old former New Zealand Test hooker is already under contract for the coming season, but such is his importance to Hull that they hope to complete a longer deal.
The club are also close to agreeing an extension with the second-rower Shayne McMenemy, another whose current deal runs out after the 2006 season.
The new French club in Super League, the Catalan Dragons, have agreed a severance deal with Steve Deakin, the English coach they sacked last month. The club are still searching for a successor.
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