http://www.witendofi.com/Instructions to find your GSPID
Step 1
Login to NintendoWiFi.com
Step 2
Go to the Metroid Prime Hunters Leaderboard.
Step 3
View page source (Check for 'Source' or 'Page Source' under the 'View' menu).
Step 4
Right-click in the newly-created window, then left-click 'Select All'.
Step 5
Right-click on newly-highlighted text, then left-click 'Copy'.
Step 6
Right-click in the box below, left-click 'Paste'.
Step 7
Left-click 'Get my GSPID'.
Im sure you can find what you need on this site i went there and they have instructions.