Hi,
Software after your message was only installed in untarred directories.
Yes, you are correct. It was installed previously in quickstart-3.7.0 and the source was in typo3_src-3.7.0. The contents of “quickstart”, contains the symlinks to the source and the install script. After your ticket/post i just have to rename the “quickstart” folder to the one specified in your ticket.
http://typo3.org/documentation/document-library/doc_inst_upgr/tgz_distribution/
This link gives a better insight into this and also, how to
use the same source to host multiple sites.