Checking version failed

Help!
I've just reinstalled AVP2 again to find that Sierra has shut down the servers....
So,
I've done a bit of googling as one does and come across lithfaq.com and installed the update for the new master servers.

Now, when i launch the game through gamespy I can choose from various servers (all is looking good) until the game launches and it fails each time on checking the version, then tells me I've got a problem with my connection or try again later.

I've disabled my PC firewall, i tried opening up ports but ended up just putting my PC in the DMZ but it still doesn't work.

Can anyone point me in the right direction to getting all the correct files and necessary updates required to play online again please?

Thank you in advance

Kenco