We ran into this issue today on a customer's SQL 2008 cluster installation. This cluster was configured with BASP Broadcom NIC Teaming driver. This allows for redudent NICs using 1 IP address. We verified the binding order was TEAM then Heartbeat and confirmed there were not disabled or ghosted network adapers as per the following KB article
955963 You receive a warning about the network binding order on the Setup Support Rules page when you install SQL Server 2008 in a failover cluster
As this was a WARNING and not a failure, we continued the setup which completed without any errors.