What is the directive of Islamic law concerning one who posts pictures of naked and immodestly dressed women on his BlackBerry account?

Possessing and viewing images of women is a transgression of God's boundaries and a violation of His command to lower the gaze. Whoever is afflicted by this should immediately repent to God, for death may come suddenly, and looking at forbidden things sickens the heart and can lead to falling into immoral acts, for the gaze is the messenger of fornication. And whoever follows the footsteps of Satan slides into indecency and abomination.