Kidwell was selected for the New Zealand team to compete in the end of season 1999 Rugby League Tri-Nations tournament.

[6] In the 2007 pre-season, it was announced that Kidwell would be co-captain of the South Sydney Rabbitohs, along with Peter Cusack for 2007.

In April 2007, Kidwell was ruled out for the season after suffering a freak accident at home where he tripped over one of his children and injured his knee.

[13] They finished minor premiers that year and made the Grand Final, but were defeated 42–28 by the Under 20s New Zealand Warriors.

Kidwell joined the New Zealand national rugby league team as an assistant coach in 2014.

A series of critical failures in team culture and management led to disappointing results and a mass exodus of players.

Taumololo defected to Tonga, who defeated New Zealand in a World Cup pool match.