arla setup question (Mac OS X)

[Troy D Goodson]

When I type

   klog tgoodson at jpl.nasa.gov

I get

   tdg at jpl.nasa.gov's Password:

What's going on and how do I fix it?
(my user account on my Mac is tdg, my afs username is tgoodson)

uname gives:
Darwin goodson-1.jpl.nasa.gov 5.5 Darwin Kernel Version 5.5: Thu May 
30 14:51:26 PDT 2002; root:xnu/xnu-201.42.3.obj~1/RELEASE_PPC  Power 
Macintosh powerpc

--- how I got here ---

I download the Mac OS X package
<ftp://ftp.stacken.kth.se/pub/arla/binaries/arla-0.35.7-macosx-10.1.pkg.tar.gz>

and installed it

I ran the "Arla Configuration" GUI and, in the "Cell Setup" pane, I 
selected both "Auth" and "Show" for cell name "jpl.nasa.gov"

I clicked "Start" to start the client

I added to my path by editing my .cshrc to include

set path = ( /usr/arla/bin $path )
setenv MANPATH  /usr/arla/man:$MANPATH

however, when I typed

    klog tgoodson at jpl.nasa.gov

I was greeted with

    tdg at stacken.kth.se's Password:

so, then I figured out that I needed to edit /usr/arla/etc/ThisCell
because it contained "stacken.kth.se" (is that a bug?)

but klog seems to ignore my username!

also, I don't have a file "/etc/krb.conf" or "/etc/krb.realms " do I 
need to add these?