Adaptec Raid 6504e Windows Driver not signed??

Hello everyone! I've recently purchased 2 Adaptec 6405E raid cards. I've got 4 (250GB) Sata drives setup for Raid 10 in each of these Dell T110 servers.

My problem is when I'm trying to install Windows Server 2008r2 the drivers from their website, tosses an error during driver selection that says they are unsigned 32bit or 64bit drivers, please go find new ones basically. Can I force unsigned drivers during install?

These are the ones I'm using:
http://www.adaptec.com/en-us/speed/raid/aac/windows/aacraid_ws08-vista-w7_x64_x86_b18668_cert_exe.htm

I have firmware 5.2.0.18668 on the cards and this is the correct version drivers for this. The download link says (Windows 7 Vista Server 2003 , v5.2.0.18668, Microsoft Certified) but where is my server 2008?
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csePixelatedAsked:
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DavidPresidentCommented:
You are putting your data at risk.  Last thing you want to do is mess with unsupported RAID drivers.   WIn2k8 and Win2K3 are too different to expect things to work properly, in particular during error recovery/failover situations.   You can mess with graphics drivers or network drivers and try to get them to "work", but disk and RAID drivers???   Don't even try. The MSFT certification for drivers for these two O/S's are different.
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csePixelatedAuthor Commented:
This is what the link I provide above says in the description. Sigh

Description:  
AACRAID driver files v5.2.0.18668 for Windows Server 2008/R2 (32-bit and x64 Edition), Windows 7 (x86 and x64 Editions), Windows Vista (x86 and x64 Editions).

These drivers are Microsoft Certified for:

- Adaptec RAID 6405, 6405E, 6405T, 6445, 6805, 6805E, 6805T, 6805Q, 6805TQ using Firmware/BIOS b18668
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DavidPresidentCommented:
The official MFST spec says 64-bit kernel-mode drivers have to be signed on Win2K8, at least as I understand it.  I wasn't directly involved in WHQL certs but I know the pain the raid team had to pass WHQL and that there was an issue with not being able to boot w/o it.  

Here is the doc that says why and the paper mentions how to get around the signature .. but I would really http://msdn.microsoft.com/en-us/windows/hardware/gg487332

You might double-check this and call adaptec just to make sure you have the right link and/or they actually did certify the drivers for 64-bit and sign them.
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csePixelatedAuthor Commented:
this never really got resolved,  the adaptec sight says they are supported and should be signed drivers, however Microsoft server 2008 hcl does not have the card listed.
no way around it was found, we scraped the card.
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