You should hear from them in a few months per the CICs website information.
Your case is still within the norms.

Signature
Jim Humphries,
Former Visa Officer
>I applied for citizenship in August 2006, took the test in March, 2007
> and still waiting for my oath date. I sent a fax to the Mississauga
> office to inquire about my application. That was 3 weeks ago. but
> there is no response whatsoever. My online status hasn't changed since
> the test. What are my options now?