For me (and this was in edgy) I downloaded this from the V4L site, and then cd' into the unzipped directory directory structure of the download and ran it from there. It didn't come on my Edgy system that I know of... IIRC. I don't know if it does or doesn't in Gutsy. It's been over a year... But basically all you need to do is download that firmware file and put it in /lib/firmware.
You can see if the file or perl script exist on your system by doing:
This will give you the path to them if they are on your system in a place that it is indexed.
If you can't find them then you probably need to download them.