I made a mistake and moved a surface texture Now some of the triangles are messed up and the back of one arm shows through a transparent inside to the front of the arm's texture in reverse.

From the popular voxel based game ROBLOX, here is my .blend file. Either tell me how to fix it, or fix it for me, thanks in advance.


(source: ezimba.com)
I think you have just moved down a tris of vertices. Select them and grab it on the Z axis with snap to vertex active as in the following pictures:





Moving faces in the 3D view don't interfere with their UV data, so the texture should come back to his initial state (not streched) without further operations.