Hi
If you are using VP version 2.41 (Unregistered free version) the tabs are: Media list, Effects and Transitions.
The Media files you may add are Images, sound and video clips in various formats.
If you want to add Overlays then these can be Images, text and videos.
To add text or images you must click the green cross on the left where the grey box is labelled "Overlay Track"
This will bring up a window where you have the choice of adding an image/video clip or text overlay.
Choosing Text, you enter your text.
Once you have confirmed the text, it is placed in the Overlay track in a grey box at the cursor position and will show some of the text depending on its length.
Choosing the Image or video option. you browse to the folder on your PC containing your image or video clip.
Once you have selected and confirmed your image of video, it is added to the media list and copied down to the overlay track at the cursor position where it will appear as a grey box containing a thumbnail image of the clip.
By default the overlay (text/video or image) appears on the main sequence display at the bottom of the screen in the centre.
If you now left click the overlay box under the sequence you open the controls for the overlay in the left hand preview pane.
If the overlay is a video, you have scroll; in/out cut points for the video, size;opacity controls, fade and position plus chroma effects and border controls.
If the overlay is text then the control screen will have scroll; size; opacity; font; text colour options; fade; border and position controls.
The left hand pane will preview your sequence along with the overlay.
You can position the overlay by dragging it along the sequence and alter its length by dragging out the ends of the grey box.
It is also possible to put one overlay on top of another to obtain "multiscreen" effects.
The overlay can also be linked to the main sequence clip.
Hope this helps
Nat