Not really sure what you mean!

The finished file size is 98kb. I reduce them all as I go along, so it's not very big at all.
Gary, I only ever use Photoshop 6, I can't afford all these new fancy filters, actions and the like!

Besides there is not much that PS6 can't do in my humble opinion. I'm still very much a learner at this, have been using
PS 6 for about 9 months now and have hardly scratched the surface. But I'm enjoying learning! You can "draw" out a cube using guides and grid but it's quite time consuming. I use PS6 now and of course , once you have one cube, you can keep on using it. If you use PS6/7, I'll tell you how I do it, if you are interested, let me know. You can also get good effects with circles and cylinders.
Regards
Frank