It was a joke dude... get it, your trying to lock your porn pics.... Anyways, there isn't a way to password just your pics but you can password your memory card and just save your pics to that..... Settings> advanced options>media card>encription mode>change to "security password"... Hope that helps.
tried passwording the microsd and it seems to password the whole handset as each time I key lock the phone it requires the password upon unlocking the keypad........very annoying - cant seem to make it possible just to password protect the microsd unless I'm missing something???