In the Character Tutorials(that comes with EE), it is always assumed that I am going to import a particular mesh(human) with some particular bones(head, body etc etc).

So, what do I have to do when, I want to import a custom character with different bone names?

what are the conventions?

I believe you have two options.

1. Inspect the skeleton of the human mesh using the Mesh Editor and then copy it for your own mesh (i.e. use the same bone names, etc...)

2. Write your own character controller class that can handle your own custom skeleton and bone names.