I assume that you're gluten free or have a requirement to be so? Check out the Gluten free part of the forum.
Sorghum syrup is made from sorghum grain and enzymes, and can be purchased from certain vendors. Homebrewing.org does, I think northernbrewer.com does and I thought at least one more.
There are very few kits (2 or 3 I know of), we do have recipes in the gluten free area.
Bard's beer has a kit, though it's a bit pricy, but they say it uses their processed sorghum which may be different than the way Briess processes theirs.
People also use other non-gluten grains to make beer as well as other fermentables. (millet, quinoa, etc).
The base process is: Sorghum syrup & fermentables, water, hops (for bitterness) boil. At the end, hops (for aroma & floral flavor), irish moss (for clarity). Cool, put into fermenter, add yeast, leave for a week or two. (maybe rack if you really need to, more on that later) Bottle with sugar, leave for 3 weeks. Drink.
Secondary: GF Czech Lager
Waiting to be kegged, Italian Primitivo
Kegged&Ready: GF Orange&Coriander, GF Honey Lager, GF chocolate ale, GF English ale, Island mist (zinfandel), Island mist (cbry malbec).
Bottled: Infected Mead, Dry Hard ciders, Accidental Sorghumwine, various unnamed.