That file is corrupted, as I've stated. I did a hex compare and found that it's missing like a 150mb chunk near the end of it. I tried making an xdelta patch to fix it (as I have a good copy), but the xdelta is like 300mb... useless, lol. edit: I figured out the issue on this download. You must double-click to run the extractor. I was trying to open it with third party utilities (WinRAR and 7z), which was the cause of the 'incomplete' issue. The ISO should be good once you've extracted it.
Do not waste your time. Windows ME is the biggest piece of junk ever made. If you want to try something new but old, try OS/2. I own every piece of software Microsoft made and have always avoided ME because it would crash so much.