unseeking?

Hi,

I've been pulling cogito and the kernel, and just fumbling around trying to learn the tool. My latest cogito is version 0.7, tracking

pasky rsync://rsync.kernel.org/pub/scm/cogito/cogito.git linus rsync://www.kernel.org/pub/linux/kernel/people/torvalds/git.git

I have many questions.

1) I saw some discussion of 'seek' as a way to get to an earlier version of a
tree; so I tried it on my own test directory. I 'seek'ed to the first patch, and
it worked - but now all I have is that very early version of my test directory.
All subsequent changes are apparently gone. How can I seek back to the most
recent state of the dir?

2) How can I 'check out' my local repository? i.e. I want to pretend to be
two developers, one of whom wants to grab a copy of the project leader's work. I
tried things like:

mkdir mygitdir2 git init ../mygitdir

where mydir is my test git repository. This didn't work. I tried rephrasing the command with an rsync url:

git init rsync://home/zbrown/site/gitstuff/mygitdir

but that didn't work either. It just said:

defaulting to local storage area rsync: getaddrinfo: home 873: Name or service not known rsync error: error in socket IO (code 10) at clientserver.c(94) gitpull.sh: unable to get the head pointer of branch master gitinit.sh: pull failed

3) How can I do a rename with cogito? There doesn't seem to be a rename command,
and if I manually do a mv and 'git add', I can commit the result, but what
actually happened? Did I really do a rename? Is the file's history preserved?
How can I verify these things?

4) fork, seek, tag, and track are a little mysterious to me. I can guess at what
these things do in general, but the specifics are confusing, and the README is a
little vague.

5) I'm a little confused about how to use a git repository to follow along with
a project. I have no problem pulling the latest version, but I'm interested in
generating changelogs for specific releases like 2.6.12-rc3. How can I

   a) identify the proper 'c83b95297c2a6336c2007548f909769e0862b509' string that
   represents the release I'm interested in

   b) generate the changelog between that version and the previous one,
   once I've solved (a)

Many thanks, Zack