Need help with archive maintenance

Hello,

I've been pouring over the documentation and have searched the mail 
list archives without luck on this.  What I've been trying to do is 
remove messages from an archive.  I used the -rmm command but all 
that's seemed to have succeeded in doing is deleting the particular 
.html file.  The deleted file is still referenced in the .mhonarc.db, 
maillist.html, and threads.html.  I thought maybe it would update if 
I added a message but the old references did not get removed.

Any ideas?

Thanks,

Terrill