Are there any websites that show episodes of the following shows?

I really like watching Waterloo Road but I can't seem to find series 3, 2 and 1anywhere!! I can't afford to buy any DVD's of it so I basically need a website with them! I have only watched episodes from this year. The same has happened for The Story Of Tracy Beaker. They are both some of my favourite shows and i really want to watch some of the one's I have missed. Please don't put the BBC Iplayer because that only showas recent clips which I have already watched.