ogreopcode: collision detection help

I need to implement entity and terrain picking and collision detection in my project. I choose Ogreopcode, as it is the only addon that mets the requirements: it can be integrated in my project instead of require to be compiled apart and it works under linux (at least the older version does, the recent doesnt).
But I have found a problem. The version that works lacks documentation. The newer version (from cvs) has an example with ETM, but it doesnt works, lacks a file, and as I said, it no longer compiles under Linux.
So, Im looking for advice about how to deal with this problem, or code snippets that help me underestand how to implement it.

I need to implement entity and terrain picking and collision detection in my project. I choose Ogreopcode, as it is the only addon that mets the requirements: it can be integrated in my project instead of require to be compiled apart and it works under linux (at least the older version does, the recent doesnt).
But I have found a problem. The version that works lacks documentation. The newer version (from cvs) has an example with ETM, but it doesnt works, lacks a file, and as I said, it no longer compiles under Linux.
So, Im looking for advice about how to deal with this problem, or code snippets that help me underestand how to implement it.

You would be better off asking an ogreopcode forum (is there one?) I don't use ogreopcode and there has been no discussion in the ETM board yet about ogreopcode.

However you can implement entity and terrain picking without any libraries other than ogre.

Ogreopcode forum doesnt let me register (activation link never arrives). And I dont need it just for picking and terrain collision, it is mostly for entity collision.