KNode - how to view recent postings?

[Timothy Murphy <tim birdsnest maths tcd ie>]

I'm still trying to work out how to look up recent postings,
say those in the last 24 hours.
I've tried what seems the obvious way of creating a "24hr" filter,
but this does not work.

If anyone has managed to do this, could they explain how, please.

-- 
Timothy Murphy  
e-mail (<80k only): tim /at/ birdsnest.maths.tcd.ie
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland