Please tell me if this is the wrong section.
I am making a tree player, but I cant get it to stop crashing blockland. I would greatly appreciate some help in fixing the player, you will be credited. Wether or not I actually post this depends on wether it is good or bad.
Pic:

Link:
http://www.mediafire.com/download.php?wazjyt4zm2x (if you want to fix, or see it)
I know I am using an already existing model, but I am no good at modeling.
Checklist:
_learn how to use blender
_ make new model
√
learn what "nodes" are_make the .dsq's for the tree
_make better script
_credit all the people who helped
_release (maybe) on July 28th
_release (maybe) onto RTB on July 28th
The (maybe) depends on whether this mod failed me or not.