1 - Go to File\Load EDIT.bin
2 - Load EDIT.bin from Documents\KONAMI\UTM Evolution Soccer 2012\save
3 - Check if GDB\faces Folder is correct, if not, browse and select it
4 - Click on Load OF Datas
5 - Select your player
6 - Drag & Drop your face/hair
7 - Click on Save
IMPORTANT: Please be sure that face/hair are for PES 2012 and not PES 2011/10/09...
P.S. I'm still working on Patch 1.1...