Help with Home Network

Hello. I want to set up my home network to be able to view any files from any computer and for my laptop computers to be able to print from my desktop. I have set up printer sharing on the desktop, but when I go to my laptop to add a network printer, it can't be located.

I am running Vista on my desktop and Windows 7 on my laptop. I can view the desktop on my laptop's network map, but when I click the icon, it says

\\STEPHANIE-PC is not accessible.

Logon failure: user account restriction. Possible reasons are blank passwords not allowed, logon hour restrictions, or a policy restriction has been enforced.

Where can I start looking for possible fixes? Would really enjoy being able to hit print on the laptop and have it send it straight to the computer.

Thanks.

What printer do you have?

Epson CX3810

Have you tried the drivers from Epson?

Epson Stylus CX3810, Drivers & Downloads - Technical Support - Epson America, Inc.