plugin destroys the admin css

Hi. The plugin works great.
It is maybe only plugin working with FB iframe without any problem.
However, the plugin destroys admin css. For example, when I add a new post, I don’t see the full menu. I do see some default menus (heading, color etc), but I don’t see the additional menus of other plugins. (add button, “see more” break etc.)

Please give me idea how to fix this.

Secondly, if the plugin automatically provide the Add Tab url for facebook, it will be great.

Thank you.
I will give 5 starts anyway.

http://wordpress.org/extend/plugins/wptofacebook/