This is the bag from the tutorial posted on Sew mama sew,
you can find the tutorial here
http://tinyhappy.typepad.com/tiny_happy/2006/06/shoulder_bag_tu.html

It is a lovely easy bag, finished very quickly, and it is one of those nice, and useful things at the same time. I am really happy with it. It is fully lined and made the same way as you would make a quick waistcoat. I used some upholstery weight fabric that I have had for yonks, so long infact that there was a distinct musty odour to it. That is gone now, thank goodness.
Go check it out if you haven't done already. Also check out sew mama sew as there is something new and exciting every day.