TurboPrint & PrintFab

[root@localhost samba]# testparm
Load smb config files from /etc/samba/smb.conf
Processing section "[homes]"
Processing section "[printers]"
Loaded services file OK.
Server role: ROLE_STANDALONE
Press enter to see a dump of your service definitions

[global]
workgroup = PRALL INSTITUTE
server ...

The smb.conf file exists. Could there be a permissions issue?

Okay!
echo "hello" | smbclient //allen/CanonMP7 -c "print-"
Worked fine, returned "print-: command not found", but no complain about network resources. So I threw info into the TPSetup window:
Printer name: CanonMP7
Server name: allen

But Turbo Print's giving me the same error as before.

I ...

Hmm, I tried the echo "hello" thing, got this message:
[root@localhost ~]# echo "hello" | smbclient //allen/Canon MP750 Series Printer
Domain=[ALLEN] OS=[Windows 5.1] Server=[Windows 2000 LAN Manager]
tree connect failed: NT_STATUS_BAD_NETWORK_NAME

I'm trying to add a PIXMA MP750 printer that's attached to an XP system on my network. I'm not sure what to put in the "Edit Printer" dialog box for "Printer Name"? Right now I have the network share name of the printer.

Anyway, when I hit the "Test Page" button, I get this error:
/usb/lib/cups ...