i managed to sort it last night, just after posting this, and it seems to work (half way through a season now). I went to the downloads section on this site, clicked on fm 2013, then clicked on the additional leagues option. On page 3 there is a download for English Level 9 (version 1). Downloaded that, and had to create a file within sports interactive/football manager 2013 called editor data. Then when you create a new game, underneath where you select what patch there is a box to tick to add custom databases. After clicking this it will take you to a new screen where you can select the download.
Hope this helps anyone who was stuck like me