feisty cd upgrade requires internet

 I had someone with a high speed internet connection, download the alternate PowerPC CD for upgrading to feisty. I put it in my CD drive, ran "sudo sh /cdrom/cdromupgrade" in a terminal, said no, when it asked if I wanted to download all updates from the internet, and clicked "upgrade" at the stage where it gives a summary of how many packages it is going to install, upgrade, and remove, etc. It said it had to download about 219 MB, but so does the Synaptic Package Manager, even if it is just getting packages from a CD. So I just assumed it was the same with this program. (I'm still not sure.) When I clicked "upgrade", it went to a progress bar with text reading something like "Downloading file no. of 125 of 2037" below, and the estimated remaining time on the progress bar, which was about 1 day 12 hours. The CD drive spun loudly until it got to file 879 or so. Then it went much slower, and the CD drive stopped. I canceled it then, and it gave me an error message, exactly the same as the Package Manager's when it fails to download files. The files listed were innumerable. Definitely over a hundred

 I also read in the "README.txt" file, I found in the same directory in /tmp/ as the one the upgrade program was running from, that the CD-ROM upgrade, gets the files for upgrading the system from a directory on the CD, which, when I checked, did not exist. (I'm sorry I can't remember the path or name, but if you need it, I can get it.) This may be the cause of the problem. Of course, I may be wrong about this, but I thought the purpose of the alternate CD, was so that you did not have to download all the files with the Update Manager. Is this correct?