Another Unfixable "no Update Available" Problem

Problem Overview:

I'm living in Thailand and bought a copy of Bitdefender Internet Security 10 here, At first there was no problem updating, but then after I formatted my computer, installed Windows/updated windowsand installed BitDefender (around 1 week ago) I could not update. The first error appeared after the installation when it attempted to update the program. The error was "BitDefender update process failed (unable to update or process canceled)", this error was displayed once the program searched for updates and tried to download the file bdcore (but couldnt download it), then when I attempted to manually update using the program after restarted, it always said "No update available", for many days I had been trying to update, it did not work. The virus signature is still "542599" with the engine "7.12628"

Attempts to fix the problem:

1. Changed the server to upgrade1.bitdefender.com to upgrade5.bitdefender.com, all of them gave the same result.

2. Uninstalled, and deleted all registry keys inside regedit that related to BitDefender and ran registry mechanics and installed BitDefender again, same problem occured (note that once I tried updating before restart, the program found the update, and when trying to download bdcore, it gives an error: "An error has occured during update (Invalid MD5). If the problem persists, please contact your local BitDefender representatives or mail mailto:support@bitdefender.com" Then after I restarted the computer, and attempted to update, the same error appeared (No updates available) with the signature still 5425599.

3. Tried changing DNS server, all of them gave the same result. (I have no troubles visiting any site including BitDefender's using any DNS server I have).

4. E-mailed support@bitdefender.com, and sent them the files they requested, but it's been a week already and they did not reply.

5. Tried renaming bdpredir.sys (according to this thread:http://forum.bitdefender.com/index.php?showtopic=1550) When I clicked update, it was attempting to update bitdefender files, and then it gave "an error has occur during update (invalid md5)..."

6. Tried repairing the installed files (according to this thread:http://forum.bitdefender.com/index.php?showtopic=1531) by closing BitDefender and use control panel -> Add remove programs -> Bitdefender -> modify/repair, as the localized version of BitDefender I have does not have the modify option in the autorun. I'm still unable to update.

7. The only way for me to update is to download the weekly update.

Computer Information:

DualCore 3.0 GHz

2 GB Ram

NVIDIA Geforce 7900GTX Graphic Card - Latest driver

X-Fi Elite Pro Sound Card - Latest Driver

Windows XP SP2 - Recently updated security + windows components

ADSL 512kb Internet Connection via Router, forwarded ports 80-65535

- No other security programs being installed, except the latest Windows XP updates.

- I'm not using any firewall, I also tried using BitDefender firewall while having windows firewall turned off... update still didnt work.

Screenshots:

Please help, I tried everything...