I'll try to explain based on what I've got on the K100D.
*Meter operating time: the amount of time the meter is on (i.e the time you get info on shutter speed and aperture in the viewfinder/external display). When the meter is off, the viewfinder does not show such information - except for when you're in M mode.
*Auto EV compensation - don't have that on the K10D
*Link AF point to AE - the camera bases its exposure on the focus point that either you or it has selected.
*pcf transfer mode - can't tell. I just use the standard mode
*AE lock - pressing that button locks whatever the camera's meter... metered; for as long as the meter is on - it does not change exposure value regardless of scene change.