[Dan Blaim]

Try right clicking in the layers palet window but not on any specific layer (the grey area under the ‘background’ layer will work). You can then choose the size of the thumbnail. My guess is that it is currently set to ‘none’.

[Dan Blaim]

Shift T will toggle your timeline track height.
Or click on the boxes found in the lower left. It looks like a bar chart

[Dan Blaim]

In Photoshop,try this.

Open a new document in photoshop that is 4 pixels high and 1 pixel wide. Use the pencil to make the top two pixels black.
Under edit menu choose define pattern and name it video scan lines or something.
Go to the original image and create a new layer. Under Edit menu choose fill. In the dialog box that opens under “use” choose pattern. Pick the Video scan line pattern.

The layer will fill up with white and black lines. Try playing with your blend modes and opacity on this layer until you get what you like.

[Dan Blaim]

It quick glance it looks like blended images using gradient masks.

You start off with two images on seperate layers.
Select the top layer and position it where you like it.
Change your foreground color to black and your background to white in the tools palette.
Click the layer mask icon on the bottom of the layers palette.
Select your gradient tool and make sure it is set to foreground to background.
Drag over your top layer torwards the back layer.

You can redrag over again until you get what you like. Play around. Have fun.

Dan