Step 1: Download an 06/07 headshape, for this tutorial, we will use Glens recently released Dwyane Wade headshape
Step 2: Find the file called DWWADE_B.ebo
Step 3: Open the ebo file with a hex editor. I suggest FxEdit which can be downloaded here
Step 4: Use the side bar to scroll down as far as you can go
Step 5: On the left, look for the words "headAshape"
Step 6: Click the "A" and press CRTL+E
Step 7: Change it to B, by pressing the B button
Step 8: Press escape on your key bored to exit editing mode (the box around the letter will turn yellow when the editing mode is deactivated)
Step 9: Save the ebo
Step 10: Place the DWWADE_B.ebo file you just edited into the SGSM. If it came with any other ebo files, do not place them in the SGSM. The Fsh files are fine to put in the SGSM folder
Step 11: Load up the game and see the difference in Edit Player Mode
Notes: As far as I know hairshape files can not be converted, so you need to find a hairshape that best suits the player that already exsisted for Live 2005. The other problem is headbands - as far as I know we cannot convert headbands, so if you want to give a player who is using a convert 06/07 ebo file, the headband will probably look messed up. Currently I am converting all 05/06 and 06/07 rookie headshapes so we get realistic rookies in Live 05. The rookies that wear headbands will still be converted but their headbands will not show up correctly. It is up to you whether you want to just stay with the original 05 headshape or change the player to not wear a headband.