yeah you can get all the seasons from torrent sites (seasons 1-7).
some specials are very hard to find thou. Also some specials are numbered in the torrent as an extra episode to a season, which is wrong. However a quick trip to epguides.com will soon sort it out.
these files are easy to find:
season 1-7
Christmas Crackers
Diamonds Are for Heather
To Hull and Back
Heroes and Villains
Modern Men
Time on Our Hands
Miami Twice (1)
Miami Twice (2)
If They Could See Us Now...
The rest are much harder, by that i mean im searching and cant find them.