I think you should fix your submissions. The mtl file is trying to load textures from the same folder as the obj. But since you have all the textures in the Textures folder it can't find them. You should either put all of the textures in the main folder or add "Textures/" before the names in the mtl.
Also on a side note, I am now helping Peardian as a TMR updater. So now I have the ability to upload these to the main site.
Quote:newmtl left_arm_Left(Arm).png
Ns 96.078431
Ka 0.000000 0.000000 0.000000
Kd 0.640000 0.640000 0.640000
Ks 0.500000 0.500000 0.500000
Ni 1.000000
d 1.000000
illum 2
map_Kd Textures/Left(Arm).png
Also on a side note, I am now helping Peardian as a TMR updater. So now I have the ability to upload these to the main site.