Meta Box and Button in Post Ads

I have two question about this In Post Ads plugin :
1) How can I hide In Post Ads Metabox in post editor? I've set "Show post metabox" options to NO in post ads Advanced Setting. But the post ads metabox still show up... I use Wordpress 3.4.1 and BP Social theme

2) How can I hide the "Insert Ad" button above the post editor?

Thank for any help. I'm totally not good in PHP and absolutely new in Wordpress. Pardon me for my bad english...