You already have a link to the A.D.A--they're the people to talk to.
Alternatively, you can call your local health department and ask for a reference to a C.D.E. (Certified Diabetes Educator).
Not knowing any important details (type I or type II, adult or pediatric patient, anything else going on, etc...), it's hard to advise. I will say that the single most important thing (in general) is TIGHT control of blood sugar. This can be hard with kids, and other "brittle" diabetics, but maintaining TIGHT control is the single best way to avoid both the long and short term complications of the disease (some of which are immediately life-threatening, all of which suck). It is tough, and there is a lot to learn, but it can be done if you're willing. There is a lot of help out there if you ask for it.
BTW, I'm a nursing student, about a month from graduating, in eastern Kentucky. I'm no expert, but I have already done a lot of diabetic teaching. I'd guess that 75% of the patients I've helped care for are diabetic.
Good luck,
Andy
Edit: I just read past the first post--sorry. Is your sweetie being seen by a doctor?