Microsoft Failover Cluster Virtual Adapter

I have read the following blog about Microsoft Failover Cluster Virtual Adapter and have few questions.

http://blogs.technet.com/b/askcore/archive/2009/02/13/what-is-a-microsoft-failover-cluster-virtual-adapter-anyway.asp

How does this adapter choose the IP address?  It seems that it is using 169.254 subnet address.

Can the IP address changed? If yes, how to change it in Windows 2008 R2?

What tool is used to show the kernel drivers?  The blog shows a screenshot below the sentence The Cluster network driver (netft.sys) is a kernel mode driver and is started and stopped by the Cluster Service.

If the physical NIC which has the same MAC address of the adapter is disabled, will that cause problem?

Thanks.