Windows install

I'm working with a group of people who need to use PostgreSQL on
Windows, but are not yet knowledgeable hackers.  I am also in this
category.

I need to be able to install a reasonably recent version of PostgreSQL
on Windows NT or Windows 2K, and I need to be able to create a list of
step-by-step instructions for the other group members on how to do the
same.

All the instructions I have found so far take you just so far, then
say now just proceed as normal.  What's normal?  Also, I should assume
most people will be using the Cygwin tools, not VC++, though I'd like
to be able to send out binaries and not have everyone have to worry
about compiling at all.

I found a binary package of 7.0 for Windows NT, but the Docs for
Windows seem to be only how to compile and install one library dll.
Since i have a binary package, I hope I don't need to compile, but in
any case, I still don't know how to install.

Thanks in advance for any help.