Question: I'm new to ExpressionEngine and was wondering if anybody could help me?

I added the code: in the header in the home index through the Design -> Templates -> Edit -> Site -> index. I then uploaded the favicon.ico to the root folder using GoDaddy's FTP.

Is there anything I missing, because it's not working?

Thanks in advance.

Answer: 
It is depended what do you want to do and how secure it must be.
If just check it by s/n - make custom from,

```
<form action="/site/sn_check/" method="post">
    First name: <input type="text" name="firstname"><br>
</from>

```

then, using [Mo’ Variables](http://devot-ee.com/add-ons/mo-variables), get \_POST value what user is entered and make request using [Query](http://ellislab.com/expressionengine/user-guide/modules/query/) module

```
{exp:query sql="SELECT entry_id FROM exp_channel_data WHERE field_id_10 = '{post:sn}' "}
  {entry_id}
 {if no_results} Sorry, is no s/n here! {/if}
{/exp:query}

```
Assuming the product data (including serial number) is now imported as channel entries, how about using either the {exp:channel:entries} tag with the search:myfield="" parameter, or EE's native search form?:

<http://ellislab.com/expressionengine/user-guide/modules/search/index.html>

Alternatively, if you're looking for more power in your search form, Solspace's Super Search module would allow you to search your channel entries for a serial number entered in a search form:

<http://www.solspace.com/docs/Super_Search>