Cannot connect to iTunes Store after Upgrade to 7.6.1.9

Question

Ever since I upgraded to the newest version, I can no longer connect to the iTunes store or the update server. Yes its a d@mn dialup connection, but you think it wouldn't matter to iTunes.
I've tried thru the Bellsouth Accelerator and straight shot out.
Here's the diagnostic log:
Microsoft Windows XP Professional Service Pack 2 (Build 2600)
Dell Computer Corporation Latitude C840
iTunes 7.6.1.9
QuickTime 7.4.1
CD Driver 2.0.6.1
CD Driver DLL 2.0.6.2
Apple Mobile Device 1.1.4.7
Bonjour 1.0.4.12
iTunes Serial Number 3451B6A3DCB6xxxx
Current user is an administrator.
The current local date and time is 2008-04-02 19:17:34.
iTunes is not running in safe mode.
Video Display Information
Dell C840
** External Plug-ins Information **
No external plug-ins installed.
** Network Connectivity Tests **
Network Adapter Information
Adapter Name: {BE0BF26F-B828-4CC9-B7E4-CCFAF9921D6E}
Description: WAN (PPP/SLIP) Interface
IP Address: 67.33.xxx.xxx
Subnet Mask: 255.255.255.255
Default Gateway: 67.33.xxx.xxx
DHCP Enabled: No
DHCP Server:
Lease Obtained: Wed Dec 31 19:00:00 1969
Lease Expires: Wed Dec 31 19:00:00 1969
DNS Servers: 205.152.37.23
205.152.37.23
205.152.132.23
Active Connection: Bellsouth
Connected: Yes
Online: Yes
Using Modem: Yes
Using LAN: No
Using Proxy: Yes
HTTP Proxy: localhost:8080
SSL 3.0 Support: Enabled
TLS 1.0 Support: Enabled
Firewall Information
Windows Firewall is off.
Connection attempt to Apple web site was successful.
Connection attempt to iTunes Store was successful.
Secure connection attempt to iTunes Store was successful.
Secure connection attempt to iPhone activation server was successful.
Last successful store access was 2008-02-25 22:00:35.

Answer 1

Turn off all your firewalls, software accelerators, security software like Norton/McAfee/Zone Alarm/NOD/Kapersky/etc, even the Windows firewall.
An iTunes upgrade is actually an uninstall of itunes & quicktime, then a reinstall of the new versions.
Those items I mentioned all see iTunes as a new program and you have to set security to allow iTunes again. So if you temporarily turn them off and can connect to the sotre, you will know that's it.
This article has info on the Windows firewall settings:
http://docs.info.apple.com/article.html?artnum=300870