iTunes could not connect to the iTunes store...connection timed out. Help?

I have tried to follow every bit of advice to fix this problem. Ever since adding iTunes 8, and connecting my iphone to it, I cant connect to the iTunes store. All I get is the message

"ITunes cannot connect to the iTunes Store. The network connection timed out"

Just before this, I synced the iphone, all the 3rd party applications stopped running, so I reset the phone. Now, I cant connect to iTunes to download the iPhone software

I've removed Norton although it wasnt on. I've tried windows firewall off and on with exception, My router doesnt have a firewall, all the other computers (macs) in the flat on the same network can connect. Ive been on the phone to apple for an hour... I've flushed the dns, Ive deleted every apple program and reinstalled... I'm going to shut off the router for 10 minutes now and if that doesnt work I'm at a complete loss.

Please help if you can. I know you've seen similar problems but please have a go.

Here's my diagnostic report:

Microsoft Windows Vista Professional Service Pack 1 (Build 6001)
NVIDIA AWRDACPI
iTunes 8.0.2.20
QuickTime 7.5.5
FairPlay 1.1.11
CD Driver 2.0.7.5
CD Driver DLL 2.1.1.1
Apple Mobile Device 2.1.2.7
Bonjour 1.0.5.11 (118.5)

iTunes Serial Number E80BE2A20D09DE38

Current user is not an administrator.
The current local date and time is 2009-01-05 14:06:08.
iTunes is not running in safe mode.

Video Display Information

ATI Technologies Inc., RADEON X800 GTO
ATI Technologies Inc., RADEON X800 GTO Secondary


** External Plug-ins Information **

No external plug-ins installed.

** Network Connectivity Tests **

Network Adapter Information

Adapter Name: {4E12D047-481A-41F1-A2F5-66D4F4FA26AF}
Description: NVIDIA nForce Networking Controller
IP Address: 192.168.1.65
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.1.254
DHCP Enabled: Yes
DHCP Server: 192.168.1.254
Lease Obtained: Mon Jan 05 14:00:35 2009

Lease Expires: Tue Jan 06 14:00:35 2009

DNS Servers: 192.168.1.254
192.168.1.254

Active Connection: LAN Connection
Connected: Yes
Online: Yes
Using Modem: No
Using LAN: Yes
Using Proxy: No
SSL 3.0 Support: Enabled
TLS 1.0 Support: Enabled

Firewall Information

Windows Firewall is on.
iTunes is enabled in Windows Firewall.

Connection attempt to Apple web site was unsuccessful.
The network connection timed out.
Connection attempt to iTunes Store was unsuccessful.
The network connection timed out.
Secure connection attempt to iTunes Store was unsuccessful.
The network connection timed out.
Secure connection attempt to iPhone activation server unsuccessful.
The network connection timed out.
iTunes has never successfully accessed iTunes store.