Claiming on a motorist's insurance after accident

Apologies for the re-opening of the thread.
I've read this, and Roxys big one and a few more on the forum but am of the opinion there's not a lot I can do in my particular predicament. I just want to confirm that really!

Basically I was cycling back from work on Green Lanes just past Haringey Rail station on Monday the 9th Feb when I was hit by a car turning left. I was not in the centre of the road but on the left hand side between traffic and the pavement. I was knocked off and don't remember a lot for a minute or two but found myself on the side of the pavement. A fellow cyclist behind me had stopped and taken my bike off the road and propped it up next to me. He then cycled off so I didn't get his details. The driver by this time had parked and calmly walked over to me. He was very polite and concerned and asked if I needed to go to hospital. I wasn't really about to think straight and just lay in a lot of pain on the floor for about 5 minutes. The driver suggested that he give me a lift to the hospital but after a while I declined. One other pedestrian stopped but he didn't see the accident. He just saw me lying there on my own (during the time that the driver had hit me and went to park) I insisted to the pedestrian that I'd be Ok with this guy and he left. There were no other witnesses that stopped or offered details or assistance. Although I remember some people staring from the windows of the jewellers on the corner of Burgoyne road and Green Lanes that looked as though they worked there. My legs were where the majority of the pain was from as they had been trapped between the car and the bike. I was about to get into the car with the driver and have him take me to St Anns Hospital (which I was later told by a paramedic would have been useless as there's no A&E) but I had an absurd fear about the safety of my bike as I had no lock and it wouldnt fit in the car. With his help I managed to stand up and then I said "Nothing's broken. I'll be fine. Just need a hot bath and maybe I'll get tomorrow off work. I'll walk." He wasn't going to argue. Despite having read Roxys piece earlier about getting all the details of the driver I managed in the haze to avoid that peice of advice and didn't ask him anything. He did tell me where he works and recognise him from there (the gym down the road) and I could roughly describe his car. He also told me his name but I obviously wasn't paying much attention so have forgotten.
I walked home and by that time (600 yards to st anns road) was starting to really feel the pain with the adrenaline starting to wear off. I rang the bell and my housemate answered and I collapsed in the doorway. He called an ambulance which arrived 40 minutes later. They took off my brand new (now ripped to shreds) waterproof shorts and revealed a lump on my left inner thigh the size of a croquet ball... I was also unable to lift my leg from the hip. I.e. I could flex at the knee but not pick up my legs. They took me to the hospital...
The reaction of the young doctor who saw me sums it up perhaps the most aptly "Fuck me, that's massive." Way to instill confidence in a patient, doc.
They gave me some sort of painkillers - large white tablets - and I was pretty much out of it for the rest of the night. I had 7 x rays on my leg and arm with some particular concern about a break on my leg and damage to the femoral artery.
Luckily no breaks and I still had a pulse, albeit faint, in my left foot (the temperature was very cold on the left compared to the right). So at about midnight they sent me home. I spent the next day unable to move most of my body! And the day after, with the most severe pain subsiding (Despite a lot of Diclofenac) after about 6 days. I tried calling the police to report on Thursday night after I began to think straight again but was told I needed to come into the station. Seeing as I haven't been able to leave the house until today I still haven't gone in to see them yet so have no idea if the driver has reported it. What are the legal ramifications of him NOT reporting it? I'm actually back at work today (I got a taxi)(Unavoidable - TV show airing tomorrow. Needs work done.) What are the problems that come with me leaving it so late to report (10 days)?
Other issues? Bearing in mind that it was raining. I had lights on. I was to the left of traffic etc.
I haven't had a detailed look at my bike yet. The handlebars are a bit battered around. The back wheel feels like a bearing is loose. It's quite noisy to turn (Just had it serviced the previous friday) but I think the structural integrity of the whole thing is largely intact.

Wow. monster post. And I'm sure lots, if not all of it has been covered before. And I expect to get flamed for being a spack and crashing. And I expect to get lots of "Use the search". But I have. And my leg hurts. And I'm having a bit of a panic because of my basic lack of actually getting the right details at the time of the incident. So humour me.
x