DALLAS — A longtime priest of the Roman Catholic Diocese of Dallas resigned from a new parish assignment amid complaints about his past involvement with an Internet site for gay priests.

The Rev. Arthur Mallinson drew brief media notice in 2002 for his connection to the Web site, which no longer exists.

He told the diocese he had contributed to the site — which used his picture — when its purpose was to support gay priests in a celibate lifestyle, said Annette Gonzales Taylor, spokeswoman for the diocese. He cut off his relationship with the site in 2001 after others began posting pornographic material, Taylor said.

The episode was resurrected on a widely circulated Internet posting.