We are requesting our members to add their processor IDs to their profiles so that it is easy for us to send their Contest winnings directly without having to ask them to display their Account IDs in public

Do not worry. Your ID details will only be visible to the Administrator team i.e admins and mods.

How to update your Processor ID:

Go to your Control Panel - SettingsUsercp - This is located on the Top right corner

Once you are there click on Edit Profile - Located on the left sidebar in your Usercp

Scroll down and below Occupation you will find options Liberty Reserve, Alertpay and Perfect Money.
You can fill your Processor IDs in there.