When trying to update to 1.7.1 from 1.5.3 it came up with a failed installation error. This was due to incorrect permissions for the file:
wp-admin > includes > update-core.php
I set it to 777 and the installation went past this point but then there was another file permission error for a huge amount of files, part of which I captured as a screen shot. Using FileZilla I am in the process of recursively changing the file permissions for every file in the CP installation folder to 777, though I do believe that I shouldn’t have to be doing this.
I do not have a suggestion as to what needs to be done as I am not a PHP coder. But there must be something wrong with my installation as CP is meant to be an install and run type of software, yes?