In many cases when people posted them pictures, there were brothers like Ansar Al-'Adl who posted fataawa on the issue and explained how many of these claims aren't true, and that the trials of the grave are to the soul, and there are many clear verses from the Qur'an to prove that the punishment of the hereafter is physical (which would include the soul.)
Like barney explained, the faces of the people in the fire will be burnt and replaced with new skins etc. and we ask Allah to save us from doing evil and to accept our good.
Here's what brother Ansar posted;
http://www.islamicboard.com/aqeedah/...-distinct.html (Al-Barzakh and our Physical world: Seperate and Distinct)
Peace.
__________________