i tried everything, nothing, at least for me. A guy told me to copy drivers from sif imagine and he gave me a list of files to be copied but probably a wrong list because that trick haven't worked for me. Here is what he said..
Hello', I could install this usb tuner using this procedure.
I have installed sif team image where drivers of this tuner are already included.
Then using ftp (filezilla) I copied the following files and folder to my pc:
lib/firmwares
lib/modules/2.6.18-7.4/extra
lib/modules/2.6.18-7.4/kernel/drivers/media/common/tuners
lib/modules/2.6.18-7.4/kernel/drivers/media/dvb
Then install VIX image (or restore the back up) and ftp the same files.
Take care about the rights for each files (before copy simply check the right of destination files)
Then reboot and you should see the usb tuner in the tuners configuration (check for your region setting)