The plone.org-Administrators are doing a great job right now to migrate the plone.org Site to Plone2.1. It should be finished by tomorrow. So give them an applause for doing it!
PS: In the process of cleaning the site the remaining Members folder will also be deleted and the stuff in them emailed to the owners. So if you one of them and your content might still be of use for plone.org make sure you upload it in the right place on the site. But of course you should wait for the migration to be finished.