Hi Russ, I've been AWOL for a bit, sorry. (actually trying to have a social life
)
Anyway, you can download the pieces of 9.1 in any order you want as long as you get them all. I'm on pokey dialup so I opted to do it in pieces over several hours/days.
You can download two or three at a time if you wish, doesn't matter. When they all arrive put them in a single folder. Then when you are ready to upgrade you will double click the first one and it will create a disk image. If I remeber correctly I think I double clicked each in turn to get the respective disk images and put them in a folder. Then by starting with the first image you will go through the normal MAC OS install routine and the first disk image will recognize the others in the folder as it goes along, you don't have to do anything else. Once done you can save the bin files folder or the image files folder for future use. (You may not have to create image files first as these are smi so each might be able to open the next smi file while installing, I created them first just to make the install go smoothly.)