Multiple Cluster Resource Names Possible?

Scenario:

We have 2003 R2 cluster resource groups that utilize multiple network name's per resource group to support legacy applications (and poor coding).  These must now be moved to a 2008 R2 Failover Cluster.  Is there a way to have only 1 IP address assigned, but have multiple network names to a 2008 R2 Resource Group?  The systems are already configured with the DisableStrictNameChecking and OptionalNames registry keys - but the cluster resource group is where I'm hitting a snag.

Any way to accomplish this?  (Just add several names to the resource group using just the 1 IP)??

Thanks!
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