I remember having to deal with CSDM. You can check out what I have set up for Polymorph. The plugin is called "poly_csdm_off" and can be found in the second post. It should work with any multimod plugin, it's not specific to Polymorph.
Let me know how it goes.
Thanks fysiks didnt know that would work with any MultiMod I will try it im using your MultiMod on my server now and it works great just want to play around with this one in my spare time