XSLT Transform when using as input a Dataset

[Rocio]

I have a dataset with 5 columns.
The first 4 columns are simply string columns, but the last one is
another dataset with 4 simple columns. The problem is that, the XSLT
transform only reads data from the main dataset, for the embedded
dataset (5th column) it only gets the column type.

This is what I get after I read data into this dataset: NOTE I put
data into the embeded dataset as well, I can verify that because I
browse thorugh the code line by line:

<ParcelsDetails>
<Details>
<ParcelNumber>0100000060</ParcelNumber>
<ParcelAddress />
<PercentTax>100</PercentTax>
<LegalDescription>bla bla bla bla</LegalDescription>
<Items>System.Data.DataSet</Items>
</Details>
</ParcelsDetails>

Even though node <Items> contains a dataset, it does not show me the
actual layout of the same. I assume this XML is fed into
XSLTTransform.Trasnform, that's why I do not get to see further in
<Items>.

Node Items should look like this:

<Items>
<ParcelItems>
<Class>bla bla</Class>
<Value>....</Value>
<Units>...</Units>
<HS>...</HS>
</ParcelItems>
<ParcelItems>
:
</ParcelItems>
</Items>

How can I feed this dataset into a XSLT transform, and have it read
the whole data?