As far as I am aware, there is nowhere I can find a copy of the Communications Act after the changes from later legislation have been applied.
This should be it, but I don't think it's been brought up to date yet. (Quoting from here: 'Update Status Warning: There are effects on this legislation that have not yet been applied to the Statute Law Database for the following year(s): 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010.' Oh well, it exists in theory.)
If in any problem you find yourself doing an immense amount of work, the answer can be obtained by simple inspection.