Help with navbar and new reply/new post.

[Minha]

Hi. I changed my server one week ago and update to 3.6.8 and now, navbar and this screen changed to a old style?

This is my old forum.

http://img409.imageshack.us/img409/926/f1rf4.jpg

And old navbar with menus.

http://img409.imageshack.us/img409/3782/f2zk5.jpg

And this is the new one :(

http://img409.imageshack.us/img409/9076/f3bm3.jpg

This is a bad installation fo the 3.6.8 update???

Thanks in avance.

Nobody knows what is the problem?? Maybe a JavaSript Fail??? Corrupted Files??

Thanks.