Although this was for Joomla, I tried in on Mambo.
(I am getting the security token pop up too.)
I'm running vm 1.1.2 and mambo 4.6.5
This does keep the token from coming up, but it does mess around with positioning
of the admin panel, the save/cancle icons disappear and some functions do not work. So, Mambo users may want to try something else.