Vista Tutorial - Will vpn solve network no web page access?

Greetings -

I have just purchased a computer with Windows Vista and am working on
placing it in a home network. I have Windows XP, Service Pack 2 as a main
computer(Dial-Up Connection).

I have completed networking, using a network adaptor (8-pin phone cable).
The Vista computer recognizes the XP Computer (lists it in the Network
Sharing) and connects to the internet via the XP computer.

Problem: The Vista computer is not able to access most web pages. I have
only found two websites: Google and GameFaqs. Nothing else seems to be
accessible.

I went online to Microsoft's "How to Open a Port for Networking"
(support.microsoft.com/kb/308127) and opened a port in the XP computer
firewall, using 127.0.0.1 as an IP, Port 445 for Internal/External (TCP),
rebooted computers. I checked "private" for network, checked TCP, winsocks,
cleared my files. I am still not able to access web pages with the Vista
computer.

Will VPN solve this problem? I have been looking at
http://www.onecomputerguy.com/networ...vpn_server.htm as well as
logmein.com If I use VPN, do I need to contact my IP for port access?

I am able to independently connect to the Internet with the Vista computer
via dial-up and view all web pages.

I would very much appreciate any help.

Thank you -

ddeen