If you need information on how to lobby for improvements to cycling facilities, there are a number of organisations you might consider approaching.
The first place to try is Bricycles, a Brighton-and-Hove based community group that aims to make cycling easier, safer and more attractive in Brighton, Hove and Sussex. For more info go to http://bricycles.org.uk/.
For the Lewes area there is Cycle Lewes: http://www.cyclelewes.org.uk/
You may want to check what our local authorities are doing to promote cycling.
East Sussex also has a Local Access Forum: