Yeah, CR ain't IMG in a pure sense - we don't act like IMG in every aspect.
The whole thing about us is: We are a separate civilization - still Homo Sapiens, but from worlds away. Upon arriving here - people left the fleet to scratch out a living wherever they could. They formed a kind of Diaspora in each house... Got into every hole (about 50 thousand people). Most of them were second generation survivors - kids of those who saw the mushrooms on Caprica and such, Anyway, somewhere in 806-810, They started to organize themselves into a ragtag fleet again. Planetform offered habitable planet in exchange for our manpower and vipers. They were kind enough to fool us, so we quite simply left them - much to the (fair or not) displeasure of house Bretonia. IMG whom we encountered in Tau-31 offered quite the same as Planetform, but this case was different - there was much less risk of trickery - mainly because IMG wasn't a greedy house corporation, but a bunch of independents in independent space. We struck a deal - Again, we'd provide them some security and They'd help us out with resupplying, jobs and searching for some habitable piece of rock.
We became effectvely the IMG's security force. Wearing IMG tags and IDs to simplify matters (and IFF). Although we and IMG are separate entities, we may as well be thought as one in game practise. We do trade niobium, sometimes mine... Only sometimes we sketch up some purely Colonial venture. Like the recent nomad-related operation in Delta.