Print from xp to ubuntu printer

I've tried for a while to get this done without success. I have a hp
deskjet 5650 printer. I have followed these steps, and still cant
print remotely from windows:

This assumes you can already print to the computer from the linux
computer that it is
connected to.

OK dude here's the easiest way to do it

1. edit /etc/cups/mime.types

at very bottom Uncomment the line

application/octet-stream

2. edit /etc/cups/

Uncomment the line

application/octet-stream

3. edit /etc/cups/cupsd.conf
Starting at line 790 you will see:

<Location />
Order Deny,Allow
Deny From All
Allow From 127.0.0.1
</Location>

Add to that another line saying
Allow From IP ADDRESS

If you want you can do something like
Allow From 192.168.1.* to allow all those computers/addresses

4. At line 862 you will see

Order Deny,Allow
Deny From All
Allow From 127.0.0.1
#Encryption Required

Add the IP Addresses in there too.

5. Go back up to line 445
You will see

Listen 127.0.0.1:631

That allows access to cups over the network but coming ONLY from
127.0.0.1
Add another line for the ip address or addresses like so

Listen 192.168.1.100:631

You can use the * again if you need to, or just specify the addresses
individually.

Save the file now.

6. Now you need to
sudo adduser cupsys shadow
sudo /etc/init.d/cupsys restart

7. Open up your web browser on the computer connected to the printer
to:
http://localhost:631

and click on Classes at the top.

8. Add a class (if you are asked to login, use your user name and
password on the computer)

9. name the class Home and click Continue

10. Choose the printer (should be the only one on the list) and click
Continue

11. Ok done with linux -- go to the XP computers and add a printer

12. Click next, go to Network printer

13. Click the bottom dot to add a printer by its URL

14. Enter in http://IP-OF-LINUX-COMPUTER:631/classes/Home

15. Choose your printer driver and youre DONE

ive turned off all my firewalls

any help would be great.

thanks