Pat, sorry to hear about your accident. Assuming you have moped insurance (hopefully through Rider), your insurer will cover all of your medical expenses. Make sure to give your moped insurance information to all health providers that you see related to the accident. Your insurer will then go after her insurance company to recoup your medical expenses. You shouldn't have to pay any out-of-pocket medical expenses.
I would definitely retain an attorney. The attorney will make sure that you receive a fair settlement to compensate you for pain and suffering and future medical issues related to injuries suffered in the crash.
PS....if you need another Puch project to replace the Free Spirit, I have an '85 Puch LX Sport with 5 star mags and a long seat I'm looking to sell. (edited)