Arrgh! Permissions Problems

[Greg Julius <fromRedHatLists outtacyte com>]

Crimey,  Just having no luck with the interactions between my Win XP 
desktop and my Linux server.

Problem:
The Win XP is perceiving the files to be read-only, and I can't figure out why.

Details:
I maintain a couple of websites for different clients, and I am creating 
mirror setups on my own Linux box to make it easy to do development, test 
and whatnot.

I can access the sites on my server via my browser and everything just 
fine.  What's giving me problems is my placing files on the Linux 
filesystem from my Windows system.

I am running Samba, and have the following share set up (and accordingly 
accessed in Windows).

[websites]
        path = /client/hostsetups
        valid users = bullwinkle, rocky
        force user = rocky
        read only = No
        create mask = 0775
        force create mode = 0755

Due to reasons of stupidity, my Window's id is bullwinkle and all of my 
Linux presence is rocky.  I never use the bullwinkle id on the Linux box 
directly, it's just the name of my window's id.

The directory structure is such that each of the clients has a directory 
under /client/hostsetups which is their root, and under that is a www 
directory which is their webserver document root.

The files in these directories are owned by the "client" with their own ID 
and own Group (unique groups), defined in passwd and group as appropriate.

my ids, bullwinkle and rocky are both assigned group evilone as their 
primary user group (500).

Each of the other client's groups, have both of my id's listed behind the 
definition: xclient1:x:509:rocky,bullwinkle

The files are all defined (in the document root and below) as -r-xrwxr-x 
(R-X to the owner and other, RWX to the group).  Even the containing 
directory has this same permissions list.

Why are these files only readable to Windows, and what can I do about it?

Should I be listing IDs behind the group definition, or other Groups?  That 
is, should I be putting evilone as the name behind the xclient1 definition?

What I'd really like is to have samba force the user and group to be the 
client's user and group, but without me having to proliferate a slew of 
shares.  Is there a way to maintain one share, and have samba force the 
user and client based upon the directory?

-g