Welcome to Searchery. Thank you for trying out this extension. It's a work in progress so please send me your feedback on my Get Satisfaction group. You might have already noticed that your awesome bar is bigger and your search bar is gone. Here's how things work with Searchery:
Now you can type URLs or search queries into your address bar:

You'll get the history and bookmarks results you're used to:

Plus you'll have access to all your installed OpenSearch search engines:

And web search results:

To access these results either click on them with your mouse, or use your arrow keys to navigate. Pressing page up or page down will navigate you between sections. Arrow keys will choose results within a section. You can enable and disable sections by clicking on the triangle or pressing tab when the section is selected.