Something I forget to say is that the Tugapod source code is also avaliable at https://sourceforge.net/projects/tugapod/.
No, I won't modify the engine, but instead I will work in a new one, called LEAF2. The original LEAF, the one I released, its already functional, and can be used to make 3d games with little effort. If someone is interested in using it, I'm willing to help. I've created plenty tutorials and samples during the development of the engine, I'll release them soon.
Also take a look at the MMORPG source, altough the game have some nasty bugs, its a good example how to use the engine, and what it is capable of. Also there are several useful free tools (with source code), including the game world editor we build for it, and the package editor ( used to compile .LEAF files).