Guildford, playing for the Crusaders this season, received support from the NZ Rugby Union following the Cook Islands incident.
At the time, NZRU professional rugby general manager Neil Sorensen said the drunken behaviour had been "incredibly disappointing" for the union, but had agreed to help the star wing get back on track; organising for him to see a counsellor.
Guildford had already been warned about his drinking. He had attended a press conference in Christchurch during the World Cup to apologise for behaviour under the influence, before going on to allegedly assault two patrons in Trader Jacks bar in Avarua and harass triathlete Kelly Pick while in the Cook Islands for a wedding.
After the incident, Crusaders coach Todd Blackadder said Guildford had vowed to give up drinking until at least the end of 2012, which he was pleased about.
"What he went through is hopefully going to be a life-changing experience," Blackadder said at the time.
"There's no second chance to learn here. I think that's really clear.
"There are no more misconducts, if there's anything remotely close then he's gone."