Delete messages from mail list archive.

When I set up a mail list I entered several test messages to make sure it was working. I'd like to delete them but can't seem to find how?

Thanks

[admin]

Here is a entry from mailman's FAQ. Use at your own risk:

Q. I want to get rid of some messages in my archive. How do I do this?
A. David Rocher posts the following recipe:

# remove $prefix/archives/private/listname
# edit $prefix/archives/private/listname.mbox/listname.mbox [optional]
# run $prefix/bin/arch listname