Ok Resolved. I hadn’t created a separate folder in FTP, under wp-content/themes – I’d just clicked and dropped the code into the file.
1. Open FTP
2. Go to wp-content/themes
3. Create new file (in this case talian)
4. Open up Talian file on desktop
5.Highlight whole file and drop into talian file on FTP
This uploaded straight away. Hope this helps someone.