These are the Arduino Tiny fuse settings for the 4313...
http://code.google.com/p/arduino-tiny/source/browse/trunk/hardware/tiny/boards.txt#373
http://code.google.com/p/arduino-tiny/source/browse/trunk/hardware/tiny/boards.txt#405
This is the fuse calculator I usually use...
http://www.engbedded.com/fusecalc