Ok, latest update is this:
I went outside again to see if I could see where the cables connect up to, like you told me, thinkfree. I couldn't see anything coming out of the brickwork in the position where the sockets in the 1st picture Ferrero posted were. So scrap the 1st picture.
In the 2nd picture there was a VM box on the right, which you said you knew well, and on the left there was a random black cable going straight through the wall. I found the corresponding cables on the outside (assuming the wires hadn't crossed over inside). The cable connected to the VM box, seemed to run lower and lower so it might be connected to cables running underground? I couldn't see because there was a fence in the way (couldn't be bothered checking other side of fence lol) but, the other black cable, I found connected up to that dish.
Anyway, came back inside and what puzzled me was that the end of the black cable had an old co-ax plug on the end of it, which is usually used to connect a terrestrial antenna to TV's (or at least for the TV I have), so I thought maybe the cables had crossed over inside the wall. But no, I just realized that it had an old co-ax ADAPTOR screwed on the end of it, and when I took it off it was an F-Type! (Thanks to Ferrero for suggested there might be something screwed on the end of it!) So I plugged the F-Type into the Satellite-In socket in the TV and voila! I have Freesat! (Just watching the Open on BBC HD atm

) So it's working now...
Only problem now is the cable is too short. Can I get some kind of F-Type extension?