[Rose Neville]

I have been having the same problem, but mine is creating cut lines for business card inserts. I am using CS3 as well. For your problem I would try using guide lines, At the top of the document you are working with click between the ruller and the page and drag… this pulls a guide line out and you can place it where you need it. You can do the same on the left side of the page and multipal times as well. then double click the guide line and change the setting to dashed lines. I hope this is good enough for the printer. Also to turn guides on and off press ctrl: it took me a while to learn this but it is useful. When you create your guide lines do them all on their own layer, make sure it is on one layer and you label it and place it ontop of all other layers. If you find a way to create diagonal lines let me know.

Rose