It said i had to buy a copper membership and gave me an amount and btc address. I paid the exact amount and it has been confirmed. I logged out and back in but still can't message. Can someone help me with this. I can't even message a moderator.
Logging out and logging in isn't enough. You have to revisit the page that gave you those information, so you can wear/activate it:
https://bitcointalk.org/index.php?action=credit;promoteOnce your transaction has 1 confirmation, revisit this page and then use the form which will appear in order to wear your new membership.
More information:
https://bitcointalk.org/index.php?topic=2385104.0