When using stripes and textures as presets, you can easily change the direction of the pattern in PhotoImpact. The buttons below were all made with the same preset by making a change to the options.

To change the direction, click on the Material atrributes folder and click the Option button:

This will bring up the Texture Options Screen. Changing the direction to 90% will change the stripes from horizontal to vertical. You can also choose to fit the texture or tile the texture. Tiling repeats the pattern to fill the image (buttons 1 and 2) whereas fitting it stretches the pattern out over the entire button (buttons 3 and 4).

For this example, the image was tiled and rotated 90 degrees resulting in a vertical stripe.

Don't be afraid to experiment - you never know what you'll come up with!