Here are some quick links for downloading full setup installer for Microsoft Office 2007 suites and other related applications:
Office 2007 Direct Download Link
You will need to provide the installed Office program a genuine and legal product key to successfully activate it.
Microsoft also publishes the trial version of Office 2010 suite products at http://office.microsoft.com/en-us/try/, which allows free usage for 60 days. A free product key will be given, and user is required to activate the trial version of Office 2010 within the first 30 days after the installation to utilize the full functionality of the Office 2010. The 60 days trial period will begin only after Office 2010 is activated.
Office 2010 Setup Installer Direct Download Links
Microsoft Office 2010 (Retail Channel) Single Image
Microsoft Office Standard 2010
English 32-bit (x86): X16-32324.exe
English 64-bit (x64): X16-32361.exe
Microsoft Office Professional Plus 2010 (Retail Edition)
English 32-bit (x86): X16-32250.exe
English 64-bit (x64): X16-32213.exe