WELL, that's a relief. A convicted cannibal has had her bid for parole torpedoed. Omaima Nelson who told headshrinkers she was dressed in a red hat, red heels and red lipstick when she went into a 12-hour dismemberment trance. Oh. Next, she killed her husband William E. Nelson, 56, during Thanksgiving 1991, cut him into pieces, boiled his head, fried his hands...and then ate his ribs which were drenched in barbecue sauce. The Egyptian born beauty, a former model, will be unable to apply for parole until 2026. The crime 