I was having a few issues at first though, with content not appearing at all - I tracked those down to a bad path in the site.config file.
I made use of the app_offline.htm file to take the site down while I upgraded - worked like a dream!
You can get the bits from here: http://sourceforge.net/projects/dasblogce. Full details of what is included in the new release are over on Scott's post about dasBlog 1.9.
