First of all, you are not supposed to download Microsoft Word from anywhere because it is not free. You have to buy. So feel free to go to your nearest electronics/computer accessories and tell them that you want Microsoft Office Word (only Word, not the entire suite) and you want the student version (because it is the same exact thing and it is cheaper). Should be about a hundred American dollars.
Second, if you do still want to download it, don't ask around here (because it IS illegal). Go to your nearest peer-to-peer application (which all suck nowadays) or a torrent site.
Third, if you were to actually find it and were able to download it, it will be wayyyyyyy too big to be actually finished today. I very highly doubt that you would finish the download, install it, get it properly working, AND finish your report before tomorrow.
Fourth, so because of this don't wait until the night before your report is due to download the necessary software.
Fifth, I have never heard of a school or a teacher who actually requires Microsoft Word for a report. I very highly doubt that they exist. If anything, I would say that would be illegal and you can get the teacher in trouble if the teacher told you that you NEED Microsoft Office to do your work. The teacher probably just mentioned the name as an example. He probably said something like, use a software like Microsoft Word to do your report.
Sixth, use Microsoft Word (which came with your computer already) and do the report. I doubt if you need something which you can do in Word but not in Perfect.
Seventh, if you still want Word besides this report, then either buy it. If you don't want to spend money, then look for other word processing programs. There are plenty of free ones. Just search for them. Google them. Download them. Install them. Try them out and see which ones you like. It won't help you today but it will help you tomorrow.
Did this stuff for two years!