Having an issue sharing a printer

Hey everyone. I am having a little trouble sharing a printer that's hooked up on this machine (Windows 7 64)

I am trying to share the printer with a netbook (Windows 7 32) and another desktop running XP Home.

So far, I can get the netbook to print correctly, but the XP system just won't print (I can, however see my machine from the other one's networking)

In addition, whenever I try to access one of the other systems from here (IE, to put files on my wife's netbook) I am getting a Network login prompt for a login and password. I also get the same prompt when I try to access the XP machine.

Any ideas of what I should try? In homegroups / advanced settings I already have the following set,

Turn on Network Discovery
Turn on file and printer sharing
Turn on sharing so anyone with network access.....
Use 128-bit sharing...
Turn off password protected sharing

These options are set for both "Home or Work (current profile) AND "Public"

Crispy said:

Here are two ways of shareing a printer hope it helps: How to Enable Printer & File Sharing between Windows 7 and Windows XP | Windows 7 and Share Files and Printers between Windows 7 and XP - How-To Geek

I'm afraid that's a no-go. All of that has already been done (both guides) all that said I still cannot print using the XP system (although it does see the printer)

In addition, I am still unable to get around the "Enter Network Password" thing when trying to view files on one of the other systems. =(

Crispy said:

What firewall are you running?

The built in firewall with Windows 7

Crispy said:

Well thats your problem disable it then it should work.

Hate to say this, but nope. No change with it on or off.

Ok, well thanks anyway guys but I give up. This is just apparently not going to work. Everything I find online tells you to do the VERY SAME thing (every how-to is the same) and I have done all this to the letter.. so I guess thats it, lol.