I don't understand exactly what you mean by your question but if you accidentally posted twice chances are that forum was loading slow and you clicked twice the post reply button. Now, if you expressly submitted twice the same thread or pot, a moderator could delete the repeated one.
If, you can not see your posted thread, it may be becuase of lost connection between you and forum, at the time of posting thread, so you may try posting again in correct forum. And if you mean, you double posted any thread, You can press report button or contact any online moderator from this list : http://forums.digitalpoint.com/showgroups.php
You can see the iTraders you have left for others here: http://forums.digitalpoint.com/itrader.php?u=18924&iv=4 Does that include the right records?