where the data user profiles is stored? i don't understand about the user porfile, where is the data is stored in THB_web

Profile data is stored in the aspnet_Profile table. String values are stored in the PropertyValuesString column in XML format. Other types (like the ShoppingCart) are stored on the PropertyValuesBinary column in binary format.

yes, i see, and how i can access those data? please descript me again
                                                                  thank so much

If you haven't worked through the tutorials in the book, I suggest you give that a try. It is full of examples of accessing and using profile data.