I know that you are level 32. Since I don't have enough time at the moment, I will write about the build that you should aim at level 40. You will need to be at least RR40 to use it and it will require that you get the whole ruin set. Now, KotBS can be a full tank or 2h DPS. While 2h KotBS is fun and all, I prefer a full tank build:
RoR.builders - Knight of the Blazing Sun
PATH OF VIGILANCE
VIGILANCE- As you can see, I wen't pretty deep into Vigilance tree because of Vigilance ability. If you ask me, this is a god damn fine ability which serves as a great damage sponge and it is worth spending so much points in vigilance.
SMASHING COUNTER - a major CC ability. Knockdown an enemy healer/DPS and stop him from healing/bursting your team.
DIRTY TRICKS - Great tactics that buffs up your team. It's a must have if you wanna contribute to your group.
PATH OF GLORY
HEAVEN'S FURY - You can stagger a whole group of enemy if you use this ability correctly. It's a great ability that has a lot of control.
Take a look at the tactics as well. I've already explained what does dirty tricks do.
BANISH DARKNESS: So called "punt". Another must have. This is a great CC ability. Use it to launch your enemy up in the air and away from you and your team.
RUGGED - Must have. As a tank, you want to build up your toughness as much as you can because you want to be able to soak up as much damage as possible.
Regarding the rotation... Depending on the situation, your job is to protect your DPS and healers, make life harder for enemy healers/DPS/tanks. Your guard should be ALWAYS UP!! Guard a melee DPS, range DPS or a healer. Use crippling blow to slow enemy tanks and melee DPS. Use your challenge to lower the DPS output of enemy players. Use vicious slash to interrupt an enemy casting.
Rotation example #1. This is situational, but it will give you a general idea about the rotation and what should you do:
You see an enemy shaman. You run towards him, use TAUNT to increase your damage output on him and to interrupt him if he's currently casting a spell. Crippling blow as soon as you can so he can't run away from you that easily. Start doing some damage and wait his next cast. Boom, use your smashing counter to knock him down. While he's on the ground use blazing blade and/or shining blade (shining blade will give your group bonus damage on that shamy). Shaman gets up. He tries to cast a spell. BOOM, use your vicious slash to interrupt him from doing that. Use shatter confidence if he has some buffs that you can remove. Apply crippling blow again. Continue with damage, use precision strike for that. By that time, with the help of your group mates, that shammy should be really low or dead. And even if he isn't dead, you made his life really hard and possibly made him miss a couple of important heals on one of his fellow players.
Rotation example #2:
Black Orc(BO) and Choppa gang up at your healer. If the healer in question is in your group and you are not guarding him atm, swap the guard to him ASAP. Run towards BO, knock him down. Cripple and slow the Choppa and then punt him away from your healer. In that way, choppa will be punted away and slowed. If he wants to get back to your healer he needs to break up the slow by using his precious ability and he still needs to run all the way back to your healer. By that time the healer should be running away and healing.
Now, you might ask yourself, what should I do if I see a whole group of enemy ganging up on my helaer? Ok, in that case, use Heaven's fury first and you will stagger most if not all of them. Challenge should be next, you want to lower their damage output as much as you can. Then follow up with knocking down and punting. Knock down a tank, punt one DPS, cripple the other DPS, criple the next DPS etc etc. A lot of target switching should be involved and you need to work as fast as you can
I'm preparing for work so I don't have time atm to write some more examples. But if you find this interesting I will write some more during the day.
So please, to anyone experienced KotBS out there, any tip, advice as to how i should progress, which skills to pick, rotations, pve/pvp mentality etc would be most welcome and apreciated 
