All most clients request to change default openERP logo with their own logo when they want to implement. In order to replace logo of openERP web client, we have to do as following: 



First we need to have own logo which the size is “202 x 65 px “ and save it as “logo.png” and” logo2.png” 

Note: logo2.png is for login screen and logo.png is for the admin page (after logged in). 

The solution for openERP version 6.1: We go to “\OpenERP-6.1\Server\server\openerp\addons\web\static\src\img” and replace the image “logo.png” and “logo2.png”. It is done, and you will see the logo was replaced.