Where are your update commands? If you did not specify any, then you need to set a commandbuilder to autogenerate the insert/update/delete commands when you call Update on your dataadapter... you can do it with a simple line of code...
VB Code:
  1. 'put this line of code (modifying it for your object names) after you create your adapter

  2. Dim MyCmdBuilder As New System.Data.OleDb.OleDbCommandBuilder(MyAdapter)
Of course, if you arent using an oledb dataadapter, be sure to change it to the type of adapter you are using...