DIANE SAWYER UPDATES VIEWERS ON THE CAMDEN KIDS -- HOW HAVE THE LIVES OF THREE KIDS AND THEIR FAMILIES FROM ONE OF THE POOREST CITIES IN AMERICA CHANGED SINCE SAWYER'S REPORT FIRST AIRED IN JANUARY? -- ON "20/20" FRIDAY, NOV. 9

Plus: A Dancing Pair - Siblings Take on "Dancing with the Stars"; And Faux Real? Celebrity Photos Tweak Our Obsession

What's it like for kids to live with no electricity, rushing to finish homework before sundown? To have no food to eat before school? To sleep on the floor with roaches, grateful just to have a roof overhead? Last January "20/20" profiled Ivan, Billy Joe and Moochie, three young citizens of Camden, New Jersey, to report first-hand on the hopes, dreams and terrible hardships children face living in one of the poorest cities in America. How have their lives changed since their stories were broadcast on national television? As Diane Sawyer reports, there was an overwhelming response from viewers: Billy's family received an ABC "Extreme Makeover: Home Edition" surprise of a lifetime; Ivan finally has a place to call home; and one woman from New York City become a mentor to Moochie. In addition, New Jersey Governor Jon Corzine sat down with Sawyer and the Camden kids to discuss the problems of the city. "20/20" airs FRIDAY, NOVEMBER 9 (10:02-11:00 p.m., ET) on ABC.

For a year and a half, "20/20" followed the lives of these children: Ivan, a then homeless four-year-old boy who dreamed of going to kindergarten (and of being Superman) and having a bed of his own; Billy Joe, then a senior in high school determined to be the first in his family to graduate and get a good job, although his family goes long stretches without heat or electricity; and then six-year-old Moochie, who promises she will get straight A's in school and wants to be a judge, as she navigates the chaos of the streets and her father's alcoholism.

Sawyer also introduces viewers to new children, still a tiny fraction of the millions who are struggling for basic needs, safety and education in Camden and elsewhere in the nation.

And: For the first time, "Dancing with the Stars" features two professional dancers who happen to be siblings, Julianne Hough and her big brother, Derek Hough. Julianne, last season's winner, is paired with Helio Castroneves and Derek, who is on the show for the first time, is paired with Jennie Garth. What does it take to compete at such a high level - especially against a sibling whom you love and support? Jay Schadler reports.

Plus: At first glance, the grainy photos look like a paparazzi's dream come true - Britney Spears and Paris Hilton, to name a few, in embarrassing situations. If they seem too amazing to be true, that's because they're not. They're the creations of art photographer Alison Jackson, whose images of celebrity look-alikes in staged photographs have outraged both stars and fans. Jackson's latest works in her just-released second book have some critics wondering whether she's gone too far. Yet she defends her notion of image and celebrity. "My work is meant to be thought provoking," she tells "20/20." "I'm trying to raise questions about our voyeuristic society, that we have to idolize them like saints." JuJu Chang reports.

"20/20" is anchored by Elizabeth Vargas and John Stossel. David Sloan is executive producer.