In order to do so, you'd need to buy the Custom Design Upgrade first.
Now, in order to hide the header image on all pages except the main page, you should write this on the CSS Editor:
<br />
#slider-wrap {<br />
display:none;<br />
}<br />
.home #slider-wrap {<br />
display:block;<br />
}<br />
Now, regarding the home page title, try doing the following:
- Create a new page titled "American Academy of Social Work and Social Welfare" and put all the content of your current front page there.
- Create another page called "Blog" and leave it empty.
- Click Settings -> Reading on the left menu in your Dashboard.
- You should see an option titled "Front Page Displays". Choose "American Academy of Social Work and Social Welfare" as your Front page and "Blog" as your posts page.
If you can't find the "Front Page Displays" option right there, go to the Appearance menu and click on the "Customize" button. You should see a panel titled "Static Front Page".
If everything's right, the title should now be larger and the whitespace problem solved.
Let me know if you need further assistance :)