Change Password

[Dan @BCBS]

Could you please help me add a change password option/form.
I added the code to open a new change password form:

'If User checked "Change Password" go to f_ChangePW
If chkChangePass.Value = True Then
DoCmd.OpenForm "f_ChangePW"
DoCmd.Close acForm, "f_Login"
Forms!f_ChangePW.SetFocus
Exit Sub
End If

Once f_ChangePW opens I have:
Combo box = cboUser
text box = txtPassword
txt box = txtNewPassword
Command Box = cmdSubmit


#1. How do I carry over the "cboUser" to the new change password form.
#2. Do you have a basic example to code the change password form?

Any direction would be greatly appreciated.