Thanks for the help.
Actually, the "Private" button is on the lower left corner of the screen. I called Apple support and they said I could not open my Yahoo email because my email was "corrupted". However, after I gave them access to the account they said they could fix the problem for a...
I am now using io7. The following is what appears on the safari settings:
Privacy and Security: 1. Do not block; 2. Block cookies; 3. Smart search fields; 4. Fraudulent website warning
Nothing about Private Browsing