Can this actually be done? If so, how do you get the cones to stand for baking, how far do you fill them, approximate time and temp. Can't seem to find my answers on here. TIA

I stand mine in a cupcake tin to bake at 325 for same amount of time 12-15 min.

Yes, it can be done. I stand the cones up in a cupcake tin. Fill them to about 2/3 full at the most. I baked them @ 325. I don't remember the time, but I seem to recall I started checking them after about 12 min.
HTH.

http://recipes.howstuffworks.com/ice-cream-cone-cupcakes-recipe.htm

Yes, it can be done. I just stood my ice cream cones up in the cupcake pan and poured the batter in about half way full. Baked at same temp as normal, 325 degrees until they looked done.

Best invention EVER! lol My mother made these every year to send into school when I was a kid--I love them (especially chocolate).

Here is another thread from a few weeks ago:

http://cakecentral.com/cake-decorating-ftopicp-6790309-.html#6790309

Totally can be done and the cones don't burn in the oven at all. You just have to find some flat bottomed cones, my local supermarket only had the pointy kind. Fill them to between half way and 2/3 full. I let mine free stand on a baking tray in the oven and then baked at 180 C (sorry I'm in Scotland that's how we measure it) for 15 mins.

Your other option is to bake some fairy cakes in a fairy cake tin, once their cooled, take the paper wrapper off and press the fairy cake into the ice cream cone.

BTW fairy cake is the UK equivalent of cupcake, I think, although I think our paper wrappers are slightly shorter (we have baking cakes and muffin cases, not the same size).