WWW- CHAUNCE Hayden, the gadfly journalist who splashes sexy starlets on the cover of his freebie magazine Steppin’ Out, got himself in hot water with last month’s interview of porn star Tera Patrick. Her husband, heavily tattooed former “Oz” actor Evan Seinfeld, is raging mad at Hayden for getting his wife’s Web site wrong.

In his article, Hayden referred to terapatrick.com – a rival site the couple is suing – instead of the official clubtera.com. Seinfeld, who fronts metal band Biohazard, fired off an angry e-mail to Hayden warning, “We don’t know each other, and I’m sure you don’t want to know