I have a nice texture that I want to put scratches onto, now I'm following a tutorial that I've done before but either I miss read it correctly last time or I'm just not reading it right today, but I can't for the life of me get it right.

Help?

This is the bit I can't seem to get right: Step 6: Open up the texture from the last part of the tutorial. Go ahead and flatten all the layers. Here’s a way to make reeeaaally easy scratches. Click the pencil tool and draw a buncha random lines to look like scratch marks, I used a medium grey color

Step 7: Duplicate the layer and set it to multiply. Click back to the original and nudge it down and over 1 pixel

I've done all that but MY texture immediately goes very dark when I do the "Multiply" part, and I can't get the scratches to look right.

I'm sure it's the scratches that are supposed to be darkened, not the whole texture, so what am I doing wrong?

The really irritating thing is that I've done this before, but I can't remember exactly how.

Oh, in case you need to know, this is the tutorial I'm following - I just wanted the scratches part.
http://67.15.36.49/team/Tutorials/texture_katherine_dinger/dirty_texture02.asp

It sounds to me like you should flatten your layers from the previous steps, but when you make your scratches, make them on a new layer, then just duplicate your scratch layer & set that to multiply.

Thanks, simple when you take the blinkers off.