How to fix EP1+2 Models and Textures for L4D2?

Hi,

Firegod transferred me here to ask. He said in order to use EP2 and such’s models, I need to fix them for l4d2. Can anyone point me to something to fix them up? Also, The textures will not work when imported into their models and materials folder, what am I doing wrong? Textures should at least work. Help?