LinuxQuestions.org - filesharing woes with linux and Win2k3 AD domain

Hi everyone...this will mark my first post to linuxquestions.org.
I'm having problems mounting a windows domain share with Linux.
I'm sure other people have had the problem I'm having, but I can't find anything that specifically addresses it and gives a resolution.

Here's the situation:
Slackware (zipslack, 2.4.? kernel) - 10.2
Samba - current as of 2/18/2006
Kerberos 5 (fermilab) installed

I have a small Windows 2003 Active Directory domain called "house.local". It has about 3 computers connected to it (it's my test-bed domain in my apartment). All I'm trying to do is get linux to mount a share on a Windows domain computer.
I don't want linux to be a domain member, I don't want samba to provide ADS authentication or any of that. I just filesharing, that's it.

Similarly, I would like to create a share on my linux computer and connect to it via my Windows computer. But one step at a time...

I've installed Samba and added smbd and nmbd to /etc/rc.d/rc.local so it starts up at bootup

I issue the command: smbmount //wincomp/linux /mnt/share
and I get:
Unknown parameter encountered: "realm"
Ignoring unknown parameter: "realm"
Password:

I didn't put in a username so I'm not sure what password it's asking for. I try my root password and my administrator password windows side but nothing works.
After the "password:" I get:

1945: session setup failed: ERRDOS - ERRnoaccess (access denied).
SMB connection failed

Now, I'm not totally dense. I can tell samba is not authenticating properly my AD domain.
So I try this:

mount -t smbfs -o username=administrator, password=nullpass //wincomp/linux /mnt/share

and I get the same "session setup failed" error as above.

I've attempted to RTFM and figure this out on my but nothing works. I know I'm missing something very basic but I can't figure out what it is.

Any suggestions or sites that explain this process?
Thanks!

-Dell