in the signing in the 3 section in the site of playstation 2 network written:"Network Access Code
 
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(This is the number shown on the back of your console's registration booklet and looks like this: 1234567-8912345. If you have purchased a separate Network Adaptor, you'll find the Network Access Code packaged alongside the Network Access Disc.)"i cant find this registation booklet.what do i do.(and i havent network adaptor)