[maemo-users] how to install OS2007?

[From: David Fass]

Hi again.  Someone here suggested I install OS2007.  So I looked at
http://maemo.org/news/announcements/view/new_os2007_he_for_the_nokia_770_with_mozilla_engine_and_memory_corruption_bugfix.html

Great.  But I don't understand how to install the thing.  I download
it on my PC and then.... what?  If anyone could give me a pointer on
what to do, I would appreciate it.  Thanks again.  -- Dave