I took about the worst possible hit one can take, car-to-moped, and was damn near killed, it way sucks.
What you wanna do, although it's a bit late for some of it, is go to the resources section and find the MOPED SURVIVAL GUIDE under ARTICLES.
The information in there might be helpful to you.
I think the most important thing right now to tell you, is to document everything, in a legal battle every scrap of paperwork counts, get proof of EVERYTHING, keep ANY paperwork of any kind, and do not part with it.
And, don't let the hospital give you any crap, life-saving or supportive care can NOT be legally denied, and getting the law to enforce that isn't likely to happen - therefore YOU must enforce it.
If the hospital tries to deny you critical or supportive care, do whatever you have to, the law favors you.
Also, don't even talk to the other drivers insurance company or lawyer, not at all - their prime goal right now is to get a hold of you while yer "not all there" and get you to agree to really stupid things, or even blame you for the accident - so if they call you, hang up on them - it's harrassment.
Don't think they will not call you in the hospital either, they will....believe it, they might also hassle your family, so pass the word to give insurance reps the "mushroom treatment".
It sucks that you have to focus on defending yourself from sleazeball insurance company tactics even now, when you should be workin on getting better, but alas, that's the way it is.
Suspect everyone, Document everything, and get yourself a lawyer you can TRUST, someone your family has dealt with before, or can reccommend, NOT some fast-talking TV commercial sleazeball, you will regret that if you do.
Also, sign NOTHING without that lawyers approval.
In short, be vicious, or you'll wind up payin for it later.