Like I said, I don't know much about who goes to jail in England, but in the US, you don't want to go to a mens prison for child abuse, pedo charges, rape or beating up a girl - beat the crap out of a bunch of cops you'll be a hero, but the guards are going to hate you. In woman's prisons child abuse and pedo stuff will get you on the bottom of the pecking order for sure as most of the women in prison have kids and miss them a lot. On the other hand, women in jail for killing an abusive partner pretty much get a pass, and a few years ago in California a woman killed some guy who had sexually molested her son, after having been convicted of that same charge before. She pulled out a gun and killed him right in court. She did five years I think on some way undercharged deal, and in an interview she said that the women in prison were not abusive of her, but rather very supportive.
I just could not imagine what someone who once was a guy, and is in jail for rape, would fair. And even though the name was not released, the prisoners would know, they have their own sources of information.
I doubt a big tough guy would last long in a woman's prison on a rape charge.