Yes they have an asymetrical color scheme. There are a few different bidings that do this. You can get them in all black. The nose and tail of your board most likely aren't the same. why should your bidings be?
i can't buy any unions because it isn't available at the store im buying the bindings, so should i go with the regular 390? or to save up a few more $ and buy the targa?
I have both the 2010 390 and Targa and while similar in some respects they are different enough. The Targa isn't really an upgrade over the 390 but rather a different animal which is stiffer and more of an all mountain binding with the 390 being more of a freestyle oriented binding.
IMO the decision between 390 and Targa isn't about money it is about intended use.