put ui on XP = %appdata%\id Software\quakelive\baseq3
          Vista\7 = %USERPROFILE%\AppData\LocalLow\id Software\quakelive\baseq3
          Linux = ~/.quakelive/quakelive/baseq3
          Mac OSX = /Users/yourusername/Library/Application Support/QuakeLive/quakelive/baseq3
 
add this command on your cfg : cg_hudfiles ui/yourhudname.cfg followed by loadhud
cg_hudfiles ui/yourhudname.cfg; loadhud

enjoy it

