If you are unable to login to FTP, please check:

1. That you are using the full username as displayed in the control panel, including the @domain part (for instance yourname@yourdomain.com)

2. That you are connected to the correct server. You should normally use ftp.yourdomain.com however, if your domain still points to your old host or if you are using 3rd party DNS, this might not resolve correctly in which case you can connect directly to the IP. This is the FTP IP shown in the right hand side of the control panel. You can try using 91.208.99.4