[How To?] <form action="member.php" *> find this line

[Serpius]

where is locate <form action="member.php" *> line bcaz i want add some code here then only themes are work

<input name="my_post_key" type="hidden" value="{$mybb->post_code}" />

where is there i search my local file every files but i tomato find this name any one can help me to find?

Go to this THREAD and find the templates that you need.

Then follow the instructions as posted in this THREAD.