I have been confused recently as to the inclusion of uploads in the limit.
This is a quote from the AUP, my underlining btw. (found here
http://www.home.ntl.com/page/userpolicy&source=ntlworld)
"Normal use" of the service is defined as up to 1 gigabyte downstream of data transfer daily (which equates to approximately 200 music tracks, 650 short videos, 10,000 pictures or around 100 large software programmes downloaded per day).
To me, it clearly only states downloads and I would feel anyone would have a good argument if uploads were included. I would have thought the word traffic would be used if both were included.