star.text.CellProperties vs star.table.CellProperties

[pullmyfinger]

I'm somewhat of a beginner so please be patient.

I have trying to set the horizonal alignment of a cell that belongs to an XTextTable.

I have the following code:

XCell xCell = xTable.getCellByName(sCellName);
XPropertySet xCellProps = (XPropertySet)UnoRuntime.queryInterface(XPropertySet.class, xCell);

However, I run into a couple of problems.
getCellByName is supposed to return a com.sun.star.table.XCell object, and yes, sure enough I have a star.table.XCell object

However, when I run my function that lists all of the services this XCell supports, I find that it only supports star.text.CellProperties, instead of star.table.CellProperties.

I also iterated through the available propertyset for my XCell object, and it confirms it, since the property "BackColor" is available, but the property "CellBackColor" is not available.

So my question is: Where did I do wrong that my XCell is somehow only supporting star.text.CellProperties. Did i query the wrong interface?

And how can i get access to the CellProperties that belong to the star.table.CellProperties object?

Thanks for your help.

[pullmyfinger]

Ok, I seemed to have found a partial answer to my question here:
http://www.oooforum.org/forum/viewtopic.phtml?t=12902

But I am still fairly confused about how querying an star.table.XCell object can give me the a completely different propertyset (star.text.CellProperties) since the documentation

http://api.openoffice.org/docs/common/ref/com/sun/star/table/Cell.html

clearly links to the star.table.CellProperties

Can someone please explain? Thank you.