Check the box that asks, "Show full instructions?"
You'll see more detailed information next to the input boxes about what's expected and what to fill in
But really, what you want to do is pay attention to the URL of the site search results.
E.g.: You're looking for ninjas and you're searching in Google.
The URL would be something like this: http://www.google.com/search?q=ninja
Replace the ninja in the URL with {searchTerms} and you're pretty much done set in adding a new search engine to the Mycroft bank.
The URL will now look like: http://www.google.com/search?q={searchTerms}
For the site icon, you can usually grab it by going to favicon.ico to the root directory of the site in question. In the example, it would be: http://www.google.com/favicon.ico
You may have to read the source code of the page if that doesn't work for you.
Steps in stepping a new search
But really, what you want to do is pay attention to the URL of the site search results.
E.g.: You're looking for ninjas and you're searching in Google.
The URL would be something like this: http://www.google.com/search?q=ninja
Replace the ninja in the URL with {searchTerms} and you're pretty much done set in adding a new search engine to the Mycroft bank.
The URL will now look like: http://www.google.com/search?q={searchTerms}
For the site icon, you can usually grab it by going to favicon.ico to the root directory of the site in question. In the example, it would be: http://www.google.com/favicon.ico
You may have to read the source code of the page if that doesn't work for you.