Despite finding many resources on the web about printing from ubuntu to windows 7, I think I need some hand holding

I've gone into Windows 7 and turned on file and printer sharing. I've also turned on password protected sharing.

Then I go into Ubuntu and choose add printer.

I choose find network printer. I enter the IP address, workgroup\username, and my password. It accepts the combination.

I then enter it into 'set authentication details now' and click verify, but I get a message ''this print share is not accessible'. Why did it previously accept my auth details then?

If I leave prompt authentication if needed, and then proceed to print a test page, I get the message 'unable to connect to CIFS host'.

I found some posts that suggest mucking up the Windows 7 local security policy, but to no avail.