PB ss -

search crossfire

pb_sv_autoss 1
but you should adjust the size etc.
pb_sv_SsFloor 1 //[Low screenshot filename serial #]
pb_sv_SsCeiling 99999 //[High screenshot filename serial #]
pb_sv_SsCmd "" //[Filename of system command to run after screenshots]
pb_sv_SsWidth 320 //[Requested pixel width of remote screenshots]
pb_sv_SsHeight 240 //[Requested pixel height of remote screenshots]
pb_sv_SsXpct 50 //[Percentage across screen for remote screenshots]
pb_sv_SsYpct 50 //[Percentage down screen for remote screenshots]
pb_sv_SsSrate 1 //[Sample Rate for remote screenshots]
pb_sv_SsDelay 0 //[Maximum delay client waits before capturing screenshot]
pb_sv_SsPath "" //[Path where remote screenshots are saved]
pb_sv_AutoSsFrom 300 //[Minimum # of seconds to wait before requesting next ss]
pb_sv_AutoSsTo 600 //[Maximum # of seconds to wait before requesting next ss]
pb_sv_AutoSs 1 //[0=No, 1=Yes (default=0)]

pb_sv_SsWidth 1280
pb_sv_SsHeight 1024
pls

pb_sv_plist
then choose a nr of a player (f.e. player 1) and
pb_sv_getss 1

PB_SV_AUTOSS 1

turns on auto screenshots


PB_SV_SSFLOOR 1
PB_SV_SSCEILING 9999

Sets number of screenshots to be stored on your ftp


PB_SV_WRITECFG

Writes to the pb config file which auto loads everytime you restart the server.

And you can check it with a ftp afaik.
Don't know where you can find the ftp need to know it also ;)