First you need to make an application to the Sig Pic Posting Subcommitee, along with a $250 Subcommitee Application fee, payable to Gambit Enterprises.
If the Subcommittee likes your application, then you will be notified by Certified Mail that your application has been forwarded to Full Committee for review - you must then submit a $500 Full Committee Application Fee, again made payable to Gambit Enterprises.
If it passes full committee, you will then be sent a certified letter notifying that your application has been accepted and that in order to receive the code to allow you to post pictures, you must pay the "Sig Pic Lock Box" Fee of $1000, made payable to Gambit Enterprises.
When the check clears, you will then be allowed to post pictures.
It's all in the Board Rules.