To get started making storyboards with Springboard:
Select one of the drawing tools from the palette on the left.
Draw in the white frame box in the main window.
Type the text that goes with the frame in the text box at the bottom of the main window.
Edit > Add New Frame
to move to the next frame.
To learn more:
explore this Help file
hold the mouse over buttons and controls to view quick descriptions in "tool tips"
look in the Status Bar at the bottom of the main window for additional explanations
press F1 while highlighting any menu item or when any dialog box is open to get more help.