ArcGIS map preview - UK census boundaries

[saj]

When setting a location type of Boundary>>One Country>>UK>>CensusAreas to a map and setting the location as the LSOA code a map is drawn with a set of boundaries but the boundaries do not reflect the area and is drawn in London rather than West Yorkshire.

I can't find any documentation online to establish what Census Areas are supported.

Has anyone come across any details?

ESRI - is this a feature that is work in progress?

Thanks