I notice you have posted this twice and right at the start of the other thread is
Information on Load requests
The number of seats for sale for a flight are available via ExpertFlyer.com, a subscription-based service with a 5-day free trial. A subscription is $9.99/month and can be enabled and disabled any time. It is encouraged to subscribe rather than post repeatedly in this thread.
NB: Op-up changes or overselling of a flight cannot be determined with certainty from this information, only inferred to be more or less probable.
For a once-off load request please follow these guidelines: