Ok I contacted the game server host about the file permissions, here is what they got back to me with;
"Hi,
The FTP server is designed to allow you to download and upload files which i have confirmed is working fine on your server.
It looks like the B3 bot is switching directly to "main" after connecting, before changing in to the game root folder."
So this confirms that I can read and write to the folders, I have tried the ftp path(s) on my B3 that I have running from my home PC, and have also tried it using a host's B3 setup(Primary Target) and got the exact same error (550 cmd error) connection to this folder/path, so I defiantly know its not my personal connection (my connection speed is 20mbps down/1mbps up) as it does it from the host as well. So yeah....I'm lost here.........any help here will be more than appreciated, been trying to fix this one error for over a week now and its driving me mad!!

on a side note here GrossKopf was hosting the B3 for me, only just last month and all was running fine, I'm using the same ftp path as I was when GrossKopf hosted it. So that's why I'm at such a loss here.
Cheers