Thanks for your post. Please go to www.adobe.com and click on download tab, then selected photoshop elements 11 and go to the download page of that product. Once the page loads copy and paste the link given below on the address bar to start the download for Premiere pro cs6 family.
For windows platform copy and paste the link one by one and once both the files are downloade open the .exe file to start the installation. Make sure that you have Winzip to extract the files.
As you have not mentioned the operating system I have provided you both the downloads. please update once you are able to install the software
If you are a cretive cloud subscriber you can go ahead and install it directly.
Lauch cc app and under Premire pro cc go to more information and select premiere pro cs6 instead of cc in the drop down "in this version" and click on download.