If you'd look closer, the 'pAEd' version is the British variant - in other words in the US it is more commonly the 'pEd' form that is used.
Also, the foot fetish word is podophilia, so I can see how you got it confused since it's only one letter off.
Now, to answer the topics:
Topless women: In certain areas, like certain beaches, sure.
Full nudity: See above.
Child porn: Nope.
Minors buying porn: Yes, at 16.
Pedophilia: Being a pedophile isn't illegal, and shouldn't be(that's just the condition, not really something you can help), but practice of it should be - no molesting children allowed.
Zoophilia: Not sure, I wouldn't exactly call it animal abuse in all cases, but in cases where it is it should be illegal.
Necrophilia: If you can prove the person would consent to you doing their corpse...