how do i put a head and body marker on an existing gbxmodel.

I'm guessing this is in relation to your earlier problem.

Adding the markers is simple:

1)Import the vehicle into max
2)Duplicate a marker like "#driver" and rename it to "#head"
3)Repeat step 2 for "#body"
4)Export the model(Make sure you compensate for permutations)
5)Compile your model
6)Change the node checksum in your gbxmodel to match the node checksum in the you animations file
7)Create your biped file

The only place I can think of that is giving you problems, would be step 4 or 6.

my problem is there is frame and _unnamed in the parent node thingy and i cant export the .jms cause _unnamed is the geometry.
also is a checksum the dropdown box.

Um, I'm not sure what you mean. Do a "print screen" of the hierarchy of you model.

No, this is your node checksum list:

sorry for confusing but that isnt an issue anymore can you please tell me where the node list checksu, is for the model collision geometry.