Go back to http://forums.adobe.com/community/creative_cloud and, in the area just under Ask a Question, type in
You may now read previous discussions on this subject... be sure to click the See More Results at the bottom of the initial, short list if the initial list does not answer your question
step 3 changed but just go to creative.adobe.com and log with the account that has been licensed. Access the page of the product you need and under the interface picture, if there is a CS6 version of it, you will find a combo box stating something like Product CC. CLick on it and change it to the Product CS6 and then you can download it.