While we do not have any official support for Vtiger yet, we are happy to try and assist with individual questions. What is it you are having an issue with in Vtiger specifically?
As for the logo, I am not yet aware of how to change it in within the application, but the vtiger logo is located in two places:
Both are 240 width x 60 height. You can rename those and upload your own in place of them if you like. That would replace the vtiger logo with your own.
Thanks for the response.
I need to configure these:
Setting up Customer Portal on your server
Download the customerPortal.zip file from here and make the below changes. This zip file contains the necessary .php, .ini, and other files.
1. Modify your PortalConfig.php file as shown below :
Eg. I access my Vtiger as https://migration.od1.vtiger.com, so I will give server path as :