I just tested the plugin using regular CS 1.6 and it worked fine for me; I don't have CZ to test with. There may be an issue with hooking the bomb explode event on CZ.
Just a shot in the dark here but try replacing
PHP Code:
register_logevent( "BombExploded" , 6 , "2=triggered" ,"1=TERRORIST" , "3=Target_Bombed" );
with
PHP Code:
register_event("23", "BombExploded", "a", "1=17", "6=-105", "7=17")
From here:
http://forums.alliedmods.net/showthread.php?t=40164
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