Hi Again,
Sorry for the bad news, but the CSV importer does not support importing tickets.
If you would like to request that feature please head to our UserVoice Page and add your own or upvote that feature as they will increase the chances of it being added to a future version.
http://tribe.uservoice.com/forums/195723-feature-ideas
Unforutnaly, as the system is built right now it is only possible to create tickets per event in the single event editor.
Let me know if you have any follow up questions.
Thanks