Glad you got it to burn ok!!
Now leave it alone for about 10/12 hours and shake down the grates. Not to harsh but enough to get the fine ash down and off grates. Then after you shake it down add more coal but be carefull not to cover up the whole complete pile of nice red coals.(Search "banking coal" on here) You need to leave a little of them showing to burn off the gases created when you add fresh coal. Remember to leave the air intake open for a good while while the new coal you added burns in and the gas is gone. You cant hurry this part so be patient ...Because if you close it off to quick after filling you will have an explosion that will scare the living crap right out of you!! Besides it will make an awful dusty mess i know i got a little too quick on the draw after filling my furnace. it taught me new respect for fresh coal.
just remember coal is not wood so you need to learn the basics for coal.
Also you best find a barometric damper because I think when the air temps drop your 30 foot chimney will suck the coal right out of the stove...maybe not that much but you lose a lot of heat right out the chimney.
Also a coal fire likes privacy!! Dont poke at with a shovel or disturbe it until you shake it down on schedule (no shovels unless you bank it)which in cold weather should be about twice a day unless you really need to crank it up.
Also dont toss that empty paper trash in to the coal fire it wont do it any good at all i know it sounds crazy but your not burning wood anymore.
All this is stuff I learned the hard way
For more info go to the "Hand Fired" section of the board and find plenty of info