It doesnt work that way. you have to add some lines to your setup file. It has to be 10 pics. One sec and I'll get the extra content to add.
EDIT- there ya go. then look for the bloody heads and just replace those with your pics. Had to make some adjustments.
; Head Creator
:state=0:hudreset,hudx=28.5,hudy=7.5,hudimage=gamecorehudshead0.tga,hudname=head0,hudmake=display,hudhide=1
:state=0:hudreset,hudx=28.5,hudy=7.5,hudimage=gamecorehudshead1.tga,hudname=head1,hudmake=display,hudhide=1
:state=0:hudreset,hudx=28.5,hudy=7.5,hudimage=gamecorehudshead2.tga,hudname=head2,hudmake=display,hudhide=1
:state=0:hudreset,hudx=28.5,hudy=7.5,hudimage=gamecorehudshead3.tga,hudname=head3,hudmake=display,hudhide=1
:state=0:hudreset,hudx=28.5,hudy=7.5,hudimage=gamecorehudshead4.tga,hudname=head4,hudmake=display,hudhide=1
:state=0:hudreset,hudx=28.5,hudy=7.5,hudimage=gamecorehudshead5.tga,hudname=head5,hudmake=display,hudhide=1
:state=0:hudreset,hudx=28.5,hudy=7.5,hudimage=gamecorehudshead6.tga,hudname=head6,hudmake=display,hudhide=1
:state=0:hudreset,hudx=28.5,hudy=7.5,hudimage=gamecorehudshead7.tga,hudname=head7,hudmake=display,hudhide=1
:state=0:hudreset,hudx=28.5,hudy=7.5,hudimage=gamecorehudshead8.tga,hudname=head8,hudmake=display,hudhide=1
:state=0:hudreset,hudx=28.5,hudy=7.5,hudimage=gamecorehudshead9.tga,hudname=head9,hudmake=display,hudhide=1
:state=0:hudreset,hudx=28.5,hudy=7.5,hudimage=gamecorehudshead10.tga,hudname=head10,hudmake=display,hudhide=1
:state=0:hudreset,hudx=50,hudy=50,hudsizex=1024,hudsizey=768,hudimage=gamecorehudsfader.tga,hudhide=1,hudtype=3,hudmake=internal
:state=0:hudreset,hudx=50,hudy=50,hudred=128,hudgreen=0,hudblue=0,hudsizex=1024,hudsizey=768,hudimage=gamecorehudseyehud.tga,hudhide=1,hudtype=2,hudmake=internal
:state=0:hudreset,hudx=50,hudy=50,hudred=128,hudgreen=128,hudblue=128,hudsizex=1024,hudsizey=768,hudimage=gamecorehudszoom.tga,hudhide=1,hudtype=4,hudmake=internal
:state=0:hudreset,hudx=24.4,hudy=16,hudimage=languagebankenglishgamecorehudshud_01.tga,hudmake=display
:state=0:hudreset,hudx=-10,hudy=-10,hudsizex=16,hudsizey=16,hudimage=gamecorehudsnumeric1.png,hudtype=1,hudmake=numeric
:state=0:hudreset,hudx=8.5,hudy=12,hudimage=gamecorehudsammo.tga,hudtype=3,hudmake=status
:state=0:hudreset,hudx=12.5,hudy=21.5,hudsizex=16,hudsizey=16,hudimage=gamecorehudsnumeric1.tga,hudtype=3,hudmake=numeric