Here are postings of the Khmer Unicode Mailing List (omitting some extraneous matter and correcting some misspellings)
KUM20011026.html 2001/10/26
KUM20011112.html 2001/11/12
KUM20011113.html 2001/11/13
KUM20011114.html 2001/11/14
KUM20011115.html 2001/11/15
KUM20011116.html 2001/11/16
KUM20011117.html 2001/11/17
KUM20011118.html 2001/11/18
KUM20011120.html 2001/11/20
KUM20011121.html 2001/11/21
KUM20011122.html 2001/11/22
KUM20011124.html 2001/11/24
KUM20011125.html 2001/11/25
KUM20011126.html 2001/11/26