Prior to CS2 I believe all tracing was done in Streamline. Which would be why you don't have the option available.

As CS6 is the newest perpetual license version available, you could purchase a new license--at full price. You can sign up to Adobe's new cloud service and pay monthly payments for the right to use the software.

There are other options, like VectorMagic's on-line tracing ability. I don't know what else is available for the Mac. Sorry.

Mike