If you want a thread title changed you have a few options (and making a thread like this isn't one of them, for future reference
1. Visit the LiveHelp if its online, and a moderator will assist you if they can.
2. PM a Global Moderator and ask them to change it.
3. PM a Sectional Moderator who is in charge of that particular section and ask them to change it.
4. Report your post and put in the new title.
Hope this helps!