If you are using one of the default templates in Joomla! : beez, JA_Purity or rhuk_milkyway you might want to change the logo.

Change the Joomla! logo for the rhuk_milkyway template:

1. Head to "Extensions" -> "Template Manager".
   • Click on rhuk_milkyway template ;
   •  Edit CSS;
   • You will see several css files.
   • Edit the template.css file and look for the following style:

   div#logo {
           position: absolute;
           left: 0;
           top: 0;
           float: left;
           width: 298px;
           height: 75px;
           background: url(../images/mv_joomla_logo.png) 0 0 no-repeat;
           margin-left: 30px;
           margin-top: 25px;
   }
   

   •   change the image path from

    url(../images/mw_joomla_logo.png)
   

   with the location of the new uploaded logo.

Change the Joomla! logo for the JA_Purity template:

1. Head to "Extensions" -> "Template Manager".
   • Click on JA_Purity template ;
   • Edit CSS;
   • You will see several css files.
   • Edit the template.css file and look for the following style:

   h1.logo a {
   width: 208px;
   display: block;
   background: url(../images/logo.png) no-repeat;
   height: 80px;
   position: relative;
   z-index: 100;
   }
   

   • change the image path from

     url(../images/logo.png) 

   with the location of the new uploaded logo.

Change the Joomla! logo for the beez template:

1. Rename the new logo as logo.gif
2. Go to  /joomla/templates/beez/images and replace the logo.gif with the new logo.

Extra tip: if you would like to delete or replace the "Joomla! accessible Template", below the logo go to
/joomla/language/en-GB/ ,  edit the en-GB.tpl_beez.ini and delete/replace the words after "=":

JOOMLA ACCESSIBLE TEMPLATE=Joomla! accessible Template

with

        JOOMLA ACCESSIBLE TEMPLATE=

or        

     JOOMLA ACCESSIBLE TEMPLATE=My website motto