Hi, Dmitry,
That article was written with VS2003 (since 2005 wasn't out at the time)....
They changed some things in VS2005. The default dataset editor doesn't display everything. You can right-click on an individual column and view properties, and set the datatype.
However, if you'd prefer to see the same kind of options that show in VS2003, you can right-click on the dataset in Solution Explorer, and select "Open With". You'll see a list of options, one of which is the XML Schema Editor that will show what you saw in VS2003. (Believe me, I'm not thrilled with what they changed).
To the best of my awareness, you can't see the datatables in Solution Explorer. You have to open the dataset visually to see them. (I'm sure if you expanded the class view. you'd see the datatable objects as well).
I don't know why you wouldn't be seeing all the datatables in Crystal. If they truly exist in the dataset, they "should" show in the Crystal DB expert.
Is this a small solution where you could post the files?
Kevin