I can't find the text I am looking for in Header.php ---It is not "Sales Message goes here" file - It.s a html file - see below:

Goto:www.mikeslumber.com/cart/ -- on the main page -- look in the source code -- -------------------------------------------------------------
find the text below -- I want to change "Welcome to "Mikes Lumber....."
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</td></tr></table></td>
<td valign="top" class="center_column" width="100%"><table border="0" width="100%" cellspacing="2" cellpadding="2">

<tr>
<td class="pageHeading"><h1>Welcome to mikes Lumbers & Hardware Store We are under Construction we expect to go online in about 2 months</h1></td>
</tr>
<tr>
<td class="greetUser">Welcome <span class="greetUser">Guest!</span> Would you like to <a href="http://mikeslumber.com/cart/index.php?main_page=login">log yourself in</a>?</td>

</tr>
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Where do I find this file???? I spoke with someone who said they edited this line in their FTP client while online - I don't have an FTP client that allows editing online.