[question] adding new stuff to ascent and WoW

[Tuup]

hi,
im trying to add stuff into ascent but i've ran into a small problem.
for my project people need to be able to attack someone from a flying mount, i've searched the forums and the c++ files in the svn but i can't seem to find where to change that stuff.
furthermore i want to add some new creatures into WoW but i dont know if it is possible and if so how to place the textures.

could somebody please help me with this stuff, i need it for my school machinima project