Well thanks Digital Jedi for your assistance, actually I am able to view the admin panel of photoplog that means all the files must have been uploaded correctly via ftp if files had not been uploaded correctly in ftp most likely I would not be able to view photplog options inside ACP.
After viewing and providing the path inside the option I am still getting a white blank page, not sure why, even providing the right path in config.php.
Any help will be much appreciated guys........