defending a charge of driving without due care and attention

[goosesae]

I had an accident in November 2009 where, whilst filtering throughslow moving traffic on a busy dual carriageway, a car tried to move from the left lane to a space in the right lane collecting me in its side along the way. The weather was dry and, at 7.30am, although it wasn't dark it also wasn't fully light and I had my headlights on. The speed limit along this road is 50mph which is close to what I was doing (40-50mph) and the slow moving traffic was moving at around 20-30 mph although the car driver has said in his statement he was doing 30-40 mph. There are two witnesses also stating the case as described, neither of them have stated any indication by the driver but both have stated they saw me braking. The policeman that attended and took the details has put in his statement that the accident was my fault due to excessive speed and that whilst the other vehicle indicated and manouevred i was travelling too fast and hit the rear of the car. The speed i was doing was by no means excessive and the collision was in the side of the car not the rear. Neither of the witnesses have said I was going too fast.
The cps are now trying to prosecute me for driving without due care and attention to which I have pleaded not guilty. My trial is next month and I have been told I cant get legal aid, I also cant afford a solicitor so I have to defend the case myself. I am looking for any help and advice in any way shape or form.
Any help would be appreciated
Regards
Mitch

[humpy07]

I know this will probably be slightly irrelevant, but what did the insurance company say in terms of liability?

[goosesae]

As the cps are prosecuting me the insurance company are taking tha same stance and going for full costs against me. As I am only insured tpf&t my insurance company are doing nothing but defending the claim against me and even then it looks like they are just ready to roll over and pay.
Mitch