Are you the owner or so? I've also invested a big amount of money in that one But Orbitcoin is already trading on cryptsy, yes... so you already have the biggest market. The problem with Orbit is the premined coins. You can motivate people buy give them extra coins when they are mining with you. Also tell the people what you want to sell, what you achieve, what the plans are. Marketing is key in this kind of business, look at coinyee west, new coin, a lot of hype and nothing to offer. Small coins like ESM (eSportMoney) and OGC (OnlineGamingCoin) have a lot more to offer, but having problems with marketing. Now i'm putting some effort in OGC (OnlineGamingCoin) to let them grow again, as it was almost dying, but at least something is happening now on the marketing side.
I'm not the dev for orbit, but there are definite block chain issues and its not even possible to mine atm.