Microsoft Office Professional 2010 setup error

I really appreiate help right now because I download the microsoft office 2010 from thepiratebay.org from Games4theworld and when I finally use winRAR to extract files and get into the file that is saying x86 ( it says I am supposed to use this one plus it is the only thing that works) and I run the setup application, it just stops right at the beginnning after about 4 seconds and says to me " Setup has stopped working. Windows is looking for solution.."
Why it does this to me? I looked through forums to see if I can find something but I could not. What am I supposed to do and can you please help? (Excuse my horible english)

Hello,

Did you read the included "# Installation Guide.txt"? There's no need to go into the "x86" folder.

I did try that many times at first but when I read the installation guide and clicked upon the autorun.exe, only a message comes up saying :
" You cannot install 64-bit version of office 2010 because you have a 32-bit office products installed. These 32-bit products are not supported with 64-bit installations:

Microsoft Office Professional Plus 2010
Compatibiity pack for 2007 office system

If you want to instal 64-bit office 2010, you must uninstall all 32-bit office products first then run setup.exe in the x64 folder."
Then it says, in short, that if I want to instal 32-bit office 2010 i have to go to x86 folder and run setup.exe at the rood of the DVD or CD or get it from where I buy the microsoft 2010 for 64-bit.

I do not understand much of this and am asking for help please.