Parts are completely interchangeable. If there are more than two mirrors with parted links and you don't want to wait, you can download each part from different mirror. (Ex: if part1 is being downloaded from fileserve, part2 can be downloaded from bitshare. Parts are completely equal.)
upload with " NiCkkkDoN " tagged are always virus-free. If you think you found something suspicious, it's a problem of your security software. All those antivirus systems will never be too smart, so don't complain. And always remember that I am not responsible for modified releases.