Maz,
As you've come to understand, support for renaming PODs and VDCs isn't provided out of the box in IAC. You may opt to customize the product (rename the VDC and POD) by making this change in Service Item Manager, inspecting the Service Item tables for references to the VDC's and the POD's names that you wish to change. You can create test VDCs and test PODs to test this manual name change. These names are used as foreign key references in other tables. All references should be updated.