How can I make a widget to do this?

I am very new to WordPress and have a very limited (ie almost non existent) knowledge of coding websites.

I’d like a widget that allows a google search the same as what I have in the right sidebar of my site – https://www.blackshadow.com.au

I made the search by putting the following code in the r_sidebar script of my template – would be much better if I could make a widget so I can move it about.

Code is:

<!– SiteSearch Google –>
<form method=”get” action=”https://www.google.com.au/custom&#8221; target=”google_window”>
<table border=”0″ bgcolor=”#000000″>
<tr><td nowrap=”nowrap” valign=”top” align=”left” height=”32″>

<img src=”https://www.google.com/logos/Logo_25blk.gif&#8221; border=”0″ alt=”Google” align=”middle”></img>
<br/>
<input type=”hidden” name=”domains” value=”blackshadow.com.au”></input>
<label for=”sbi” style=”display: none”>Enter your search terms</label>
<input type=”text” name=”q” style=”width:175px; ” maxlength=”255″ value=”” id=”sbi”></input>
</td></tr>
<tr>
<td nowrap=”nowrap”>
<table>
<tr>
<td>
<input type=”radio” name=”sitesearch” value=”” checked id=”ss0″></input>
<label for=”ss0″ title=”Search the Web”><font size=”-1″ color=”#ffffff”>Web</font></label></td>
</tr><tr><td>
<input type=”radio” name=”sitesearch” value=”blackshadow.com.au” id=”ss1″></input>
<label for=”ss1″ title=”Search blackshadow.com.au”><font size=”-1″ color=”#ffffff”>blackshadow.com.au</font></label></td>
</tr>
</table>
<label for=”sbb” style=”display: none”>Submit search form</label>
<input type=”submit” name=”sa” value=”Search” id=”sbb”></input>
<input type=”hidden” name=”client” value=”pub-9426254923038871″></input>
<input type=”hidden” name=”forid” value=”1″></input>
<input type=”hidden” name=”ie” value=”ISO-8859-1″></input>
<input type=”hidden” name=”oe” value=”ISO-8859-1″></input>
<input type=”hidden” name=”cof” value=”GALT:#FFFFFF;GL:1;DIV:#000000;VLC:FFFFFF;AH:center;BGC:000000;LBGC:000000;ALC:FFFFFF;LC:FFFFFF;T:FFFFFF;GFNT:FFFFFF;GIMP:FFFFFF;FORID:1″></input>
<input type=”hidden” name=”hl” value=”en”></input>
</td></tr></table>
</form>
<!– SiteSearch Google –>

Thanks in advance