With your form open in design view. Add a Command button to the form. When the wizard opens click on cancel. Right click on the command button, select properties. Select Evensts. Select OnClick. Click on the ellipsis (...). Select Code Builder. VBA window will open. Copy and Paste the code below between the Sub line and the End line.
Code:
Private Sub Command20_Click()
On Error GoTo Err_Command20_Click
DoCmd.GoToRecord , , acNewRec
Forms!frmTransactions.Payee.SetFocus
Exit_Command20_Click:
Exit Sub
Err_Command20_Click:
MsgBox Err.Description
Resume Exit_Command20_Click
End Sub
The two items highlighted in red represent the form name and the field name (after the period) you wish to open and set the focus to. Change it to represent your table name and field name. Close the VBA window. Click on the Command Button and change the Caption to what ever you would like, ie. Add New Record.
edit: My command button was named Command20, you will have to change yours to whatever Access assigns when you create it.
Good luck.
Alan