You can get DDS converter here http://www.dsabstraction.com/dds_converter.htm
If you look in setuplevel.fpi under languagebank you will find this code
:state=0:hudreset,hudx=5,hudy=5,hudimage=languagebank\english\gamecore\huds\lives.tga,hudmake=display
:state=0:hudreset,hudx=4,hudy=8,hudsizex=16,hudsizey=16,hudimage=gamecore\huds\numeric1.tga,hudtype=1,hudmake=numeric
:state=0:hudreset,hudx=15,hudy=5,hudimage=languagebank\english\gamecore\huds\health.tga,hudmake=display
:state=0:hudreset,hudx=14,hudy=8,hudsizex=16,hudsizey=16,hudimage=gamecore\huds\numeric1.tga,hudtype=2,hudmake=numeric
I believe if you remove this, it will take out that perticular hud.
Please keep in mind, I have not tested this, so I am not 100% sure.