How can one see archived postings from before February 2006 via this web interface?
You can't. All the list postings before that (and after) are available from:
And don't forget that Richard Murray has a viewer program:
http://www.heyrick.co.uk/software/opmlv/index.html
-- David Pilling email: david@xxxxxxxxxxxxxxxxxxx web: http://www.davidpilling.net post: David Pilling P.O. Box 22 Thornton Cleveleys Blackpool. FY5 1LR UK fax: +44(0)870-0520-941