Downloaded and installed the 2011 AutoCad and I dont see it anywhere in order to open and activate it. Where is it Tech Support?
Depending on Installation options you chose you may find Startup Shortcuts on the desktop. Shortcuts are always placed in the Start Menu. Look here: Start Menu > Programs > Autodesk > AutoCAD 2011 > AutoCAD 2011 - <Language>.
Also, the download is a WinRAR self extracting executable, when you click on the Install button it extracts the Installer to the “C:\Autodesk\AutoCAD_2011_<Language>_Win_64bit” folder. When this extraction is complete it launches the AutoCAD Installer. Maybe the Extraction completed but you did not actually install it. You can browse to this folder and double click to the Setup.exe file to restart the AutoCAD 2011 Installer.
Let us know what you find.