If you want to use the Torchwood theme as your ringtone, the following might be some help.

1st. Each brand of cellphone requires a different type of format for a ringtone. To find out which ringtone format your cellphone uses, refer to your manual, webpage, or call your cellphone provider.

2nd. Note that my LONG the 53-second theme to Torchwood in the MP3 format is most likely too long for your cellphone. Above is a short 10-second version of the Torchwood theme in the MP3 format that my Japanese cellphones will accept.

3rd. Please note that you can convert my Torchwood 53-second MP3 or my 10-second MP3, and then format it to your cell phone's specific ringtone format using this free service from media-convert.com:
http://media-convert.com