Macbook Pro (Late 2008) - Windows 7 64-bit, Bootcamp 3.1 - Wireless Issue

Hi Everyone,
I have a Macbook Pro (15-inch, Late 2008) model with Snow Leopard and Windows 7 64-bit dual boot. I have done a search and cannot find any reference to this problem on my hardware.
I have had no issues in Windows 7 when using Bootcamp v3.0. In the last week I have upgraded to Bootcamp v3.1. (completed twice, rolled back in between to prove that the issues was related to the Apple Update)
After I update to v3.1, I have issues with my wireless network. The network cannot resolve the name for any internet address. I can connect to wireless networks (tried multiple networks), all the DHCP settings seem to be retrieved correctly (Gateway, DNS etc) and I can ping local and machines outside my network without an issue provided I use the IP address. (Skype works - which uses direct IPs rather than names I have found over time)
As soon as I use a name for a destination for Web traffic, Mail, pinging (any application), my Macbook Pro cannot resolve the address and just bombs out.
If I connect to a wired network, the machine works perfectly and name resolution on that interface works. If I rollback (using Windows 7 rollback capability) to before the v3.1 Bootcamp is installed, the wireless networking also works perfectly.
I noticed this in the support area at apple:
http://support.apple.com/kb/TS3196
But this refers to wireless issues in Bootcamp drivers prior to v3.1 and on 13 inch Macbook. Wonder if this is a similar issue or related?
Anyone else seen this or point me in the direction of a fix?
Thanks,
Thommo

I'm looking into running Windows 7 64bit on the exact same MBP you have, so I'm curious as to whether or not you've found a solution yet outside of the forums.
Do you think it might be that the bootcamp 3.1 update is only for Windows 7 32bit and not for the 64bit version?

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