Product Category - Urgent

I have imported the eCommerce MySQL database from webassist. I have created a dynamic site along with a database connection (connection test is good). I started creating the insert and update web pages with the dataassist (within Data Bridge). It seems that whether I am using a "Product Catalog" or "Product Administration" application type, many fields are ignored....including the product category field (which is very imprtant for me).


I tried building data pages from scratch and I manage to see the category field, but when I let data assist run to create the pages I get the following messages. I have named the image files in numerical order so that you can see the sequence of these messages.

Please help me on what can be done with this problem?

Hope to hear from you as sson as possible.

Thank you and regards.