I performed a fresh install of Kubuntu's new distro - Lucid whatever - today. As per usual, there is no front-end to configure Samba and I had to do it the old-fashioned way. The following are steps that should walk you through a basic configuration on creating a share that can be accessed from Windows:
sudo aptitude install samba smbfssudo smbpasswd -a foo where foo is the username. You will be prompted for a password as well.foo = bar inside it where foo is the username we just created a password for and bar is the username of the Windows account which will be access this share. In other words, user bar will become foo when accessing this share.sudo vim smb.conf;security = user. Uncomment it.username map = /etc/samba/smbusers to direct Samba to use our newly created user and password pairs.
[downloads]
comment = My downloaded files
path = /media/data1/downloads
guest ok = no
browseable = yes
writable = yes
sudo initctl restart smbd... and that should do it. Try accessing the share from Windows to ensure that all is kosher.
Please feel free to point out any issues using the comments form below.