Without spending lots of time figuring out what all those model numbers mean, set it up with CC near the TV, L/R speakers on either side of the TV, and surrounds to the side and slightly behind the listening position.
Searching THX would tell you as much.
Sound quality may not be what you expect, and you'll want to know what to change. You'll have to tell us more, like give a diagram of the room. The only non-generic guideance I can see from your post is to try and arrange your TV and listneing position (LP) so you can put the speakers as far from the LP as possible in a small room. Some speakers may not sound as good pushed up against the wall (boomy/too much bass), so pull them a little away if you can, and they're not already too close to the LP.
I'm also hoping these are fairly small speakers, as larger speakers require a longer listening distance before the drivers integrate...
And temper yor bass expectations; small rooms are very hard places to get good, smooth bass... boomy bass is easy.