cache/log conversion script

Someone posted a small script to convert the numbers in the cache/log
file into a directory and filename but I've looked through the
mailing list archives and can't spot the message. Does anyone have a
copy of the script they can mail me please or even the subject of the
original message would do as I can then find it in the archives..

I want to convert:
0000164b 33b774e1 fffffffe 33b77475 2091 <long url snipped>
into it's filename within the cache.

Thanks,

  Simon

-- 
Simon Amor                        System & Network Administrator 
simon@foobar.net                     Absolute Communications Ltd
http://www.foobar.net/~simon/        Telephone: +44 116 233 0034