When you do a scan, it CREATES the service and bouquet file for you.
If the file already exists, it will simply overwrite it.
If there is a service/bouquet file for your area on here then download it and FTP it to your box... it goes in /var/tuxbox/config.
If there ISNT a file for you, then delete the service.xml and bouquet.xml file from /var/tuxbox/config and then do a new scan for channels.
Liam.