Help changing timeline to generic titles (month 1, mo 2, etc)
 

I need to create a generic timeline for a project implementation showing effort and duration only. Can someone help me figure out how to change the project timeline headers from actual dates to generic titles?

Example:
August 2011 Sept 2011 Oct 2011

To this

Month 1 Month 2 Month 3

I'm sure this is easy but I can't figure it out.. Would really appreciate any guidance.

Bring up the Project: Information inspector with cmd-4, then select Dates: Undetermined. Now all dates will be referred to relative to the start date, symbolically described as T. Your headers in a monthly view would be T, T+1mo, T+2mo, etc.