VS 2005 - Database Transfer And Updation

I have two tables namely BankAccount and MoneyTransfer to be used in a single form. Here lies my form: Attachment 72574
In the BankAccount table I have got the AccountNo,BankName and CurrentBalance columns.I am fetching the data of these columns during the form load event and filling up the combobox's of the From and To part as shown in the form snapshot. So I did this below code in the form load event:

Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
con = New OleDbConnection("Provider=Microsoft.Jet.Oledb.4.0;Data Source=C:UsersGautamDocumentsVisual Studio 2005ProjectsEtech_TransferEtech_TransferBankAccount.mdb")
con.Open()
[Code] .....

Now I have a Date and Amount field in the form and I have both the columns present in the TransferMoney table. The user will first select the BankName and AccountNo. from their dropdown list,then enter an amount in the Amount field and ontransfer button click the money will be transfered from the FROM part to the TO part and the BankAccount table will get updated by the current balance of both the FROM and TO part and the Transfer money table containing the Amount and Date column will also get updated by the Amount transferred and the date in which the money is transferred.