need keyword search of Jigsaw mail archive

 The mailing archive  for Jigsaw has become very big.

Searching for a particular item is now not feasable
by a simple scan thru all the mailings.

I know that the priority on this matter is low,
and time spent on jigsaw might be better spent
than on the producing a keyword search of the list
but in the long term it would help a lot.

Thanks
sinclair Budd
s.budd@ic.ac.uk