using guide

[Baloff]

Hello

1)
how do I get the newly posted articles? I went to the Group buffer,
hit 's' it says in the echo area, (No changes need to be saved).
my server mode has
{nnfolder:archive} (closed)
{nntp:news.iprimus.com.au} (opened)
when I point to the second line and hit 's' the echo area says 
(no such function: nntp-request-scan)

2)
in my group buffer, what is this line mean
U     *: nndraft:drafts
I don't remember adding such group from the server.

3)
in the Group buffer, A k suppose to list all killed groups
but it says, (no killed groups), how can that be when I know I must
have killed thousands of them after selecting the once I need with 'u'
after the active file was loaded few days ago.

4)
from the info page
Listing Groups
==============

   These commands all list various slices of the groups available.

`l' 
`A s'
     List all groups that have unread articles
     ...
what does this mean?
`l' 
`A s'
at the top of the node.

5)
in the Group buffer, point and <RET> it asks for how many articles to
download.
is there a way to have this done automaticlly.


thanks

and oh,, is there a user guide somewhere.