Visual Studio and Fix4-4

Imported from previous forum

I am attempting to import the Fixml schemas into Visual Studio .net 2003. I can create datasets for fixml-datatypes-4-4.xsd, fixml-fields-base-4-4.xsd and fixml-fields-impl-4-4.xsd. However, when I attempt to convert fixml-components-base-4-4.xsd to a dataset, I receive the following error:

c:\inetpub\wwwroot\FIXml\Schema\fixml-components-base-4-4.xsd(1): Custom tool error: Unable to convert input xml file content to a DataSet. Undefined data type: ‘SeqNum’.

The custom tool being used to create the dataset is MSDatasetGenerator. Attempting to convert other files to datasets will return similar error messages about other definitions. It seems that because each xml schema includes another for several levels, that the generator stops after about 3 or 4 levels of include schemas.

Does anyone have any suggestions?
Thanks for the help in advance.