Transparent Text

Clive this is the video (below) that I followed for this effect. As usual being done in Photoshop I had to adapt it a little for PSE.

Two layers of text are required...

The first text layer is the white text or it could be any colour you want...
For the duplicate/copy layer select the layer and go to Styles - Visibility and click on the invisible icon in the middle to make that layer invisible. Then the only way I have found to give the invisible text a white stroke is go to Layers - Layer Styles - Style Settings. In the Style Settings dialogue box you can set the stroke and the colour of the stroke and also give it a drop shadow there too.

The placement of the text is important.
The original layer of white text is placed below the subject image and the invisible layer is placed above the subject image.
Then using Ctrl/Cmd + Click on both Text layers to select them and click on the little chain icon to link them together so that you can then move them around the page as one unit revealing different looks from the invisible part of the text - if that makes sense!
I have included my layers which shows the text layers linked.