Follow these guidelines to create the signature.
1. Make a signature and add a text-layer (Make sure the layer doesn't have any layer-style)
2. Create a new layer;
Grab your gradient-tool and set it to Reflected Gradient
3. Create something like this and press: Ctrl+I
4. Press: Ctrl+U and set it to your favourite color;
Press Ctrl+G and set the blending option to "Lighten";
And press this button
5. When in Image-Ready, select the gradient-layer;
Move it all the way out of the text so that you can't see it (left);
Press this button and select "New frame"
6. Press right until you see the gradient move to the other side of the text-area;
Press this button and select these options
7. Save Optimised as, and it should look like this
More Tutorials: 
I have some trouble with this tut.. At the end, when I save it optimized as. I get the whole strip instead of just in the text.. help...
>> Move it all the way out of the text so that you can't see it (left);
You should to move your layer to the left (using your keyboard left arrow button) until the gradient gets to the place, left to "MickM" text
>> Press right until you see the gradient move to the other side of the text-area;
Do the same as in previous description but to the opposite direction (to the right).
ok after this step im lost.
When in Image-Ready, select the gradient-layer;
What do you mean by:
Move it all the way out of the text so that you can't see it (left);
does that mean i just move the layer all-the-way out to aside? im confuse...
And after that how do i do this:
Press right until you see the gradient move to the other side of the text-area;
What botton do i press?
Everytime i try to do this piece of work it always turns out wrong cause i get confuse on those steps.
Help please.....