First, thank you for your help. After your sugestion, i change tb.border in admin panel. Here, how it looks now...
http://img688.imageshack.us/img688/1336/editk.jpg
But there was just small change on the extra navbar and there is still white border inside. Take a look (i made the photo bigger)...
http://img18.imageshack.us/img18/9205/extranav2.jpg
Any idea how to make it completely black?