Skin Bug

Hello i want some help for fix that bug, have an idea?

http://img140.imageshack.us/img140/6161/deebw.jpg

I don’t see anything wrong with the picture, unless you weren’t trying to make him crouch.

http://img3.imageshack.us/img3/2204/rptbcity45v02n0000.jpg
Should stand like a boxer,

http://img215.imageshack.us/img215/6568/rptbcity45v02n0001.jpg
Huch…

http://img3.imageshack.us/img3/8217/rptbcity45v02n0002.jpg
:s

I forget to say, i’m playing on tacoscript mods, maybe that change something i don’t know…
Sorry for bad english i’m french…