Some stuff I don't understand

Hi BFA team,

thanks for the cool Atahualpa Theme. Over time I suppose that I will be able to handle all such issues but currently I have not much experience and I have several margin and font stuff I am not able to solve.

1. I am not able to add some space in the upper right corner that the word "E-Mail" is right-justified to the search box. Where can I do that?

2. I am not able to add some margin to the top, left and right of the center column like I did with the sidebars. I tried all combinations in "Style and edit center column" but it did not work. Where can I do that?

3. I did not find the solution to reduce the size of the text in the sidebars

4. I changed the <H1>-Tag that it should be transformed to uppercase and bold face. Uppercase worked, bold face not, what's wrong here?

Sorry for so many questions, could you please have a look at http://beta.pickert.de? Thanks

Sven.