I have a list, it's been on my hard drive for a while so it might be a little out of date but a good start. I can't post attachments on here so pm me you email address if you want it.
I feel old now....... we were taught proper English when I went to school...
I have to say that the russians seem to have the most swear terms, and most of them revolve around mothers.
The best of all though is in mandarin - (sorry to anyone that is mandonese) - which is i hope your mother contracts turtles!!!!!
(how the heck do i get that one in a profanity checker!!)