Help with name of law and order SVU episode?

Question

I remember this law and order episode. It revolves around children being trafficked as s*x slaves. The episode is NOT "Ritual" in the 5th season. All I remember is Stabler and Benson visiting another country and the curtains in the window of the houses denote whether a boy (blue curtains) or a girl (pink curtains) is available for protestation.

This episode will be used to supplement a report on the media's approach to child pornography. Many Thanks!!!!!

Answer 1

it's either

81. Pandora    

First aired: 2/7/2003    

The brutal rape, and subsequent death, of a female motorist turns out to be an informant for the FBI acting as a cyber vigilante for catching on-line pedophiles to capture the predators. Stabler, along with the homicide detective who found the victim's husband murdered, follow the trail of evidence for the latest victim she had been tracking, leading them to the US Attorney's Office and a trip to Prague for Stabler to assist the Czech authorities when they find the girl who was tricked into going there

72. Angels    

First aired: 11/1/2002    

The body of a battered young boy found in a luggage compartment of an airport shuttle bus sends the detectives to his guardian who was discovered to be a pedophile only to find his corpse in bed with his genitals removed. The subsequent investigation leads them to a travel agency specializing in exotic trips for sexual predators.

73. Dolls  

First aired: 11/8/2002    

When the decomposing body of sexually molested five-year-old girl is discovered, Detectives Benson and Stabler's investigation leads them to the painful reality that they are searching for a serial pedophile as they race to save the life of his latest victim. As the mother of the missing girl frantically awaits news of her daughter's whereabouts, she must reconcile the fact that her own recent bout with addiction may have played a part in her daughter's fate

Answer 2

Yes,I loved that one :)

Episode 15,Season 4,I think

It's called Pandora