Considering "our" earth has been SHOWN as existing in this universe, I think it makes perfect sense that "our" Earth is clearly in the TV show, and no one is trying to "put it" anywhere.
I simply do not think we have seen it yet, outside of that one shot in Crossroads. Ron Moore has been clear that he made certain that the ruins we saw of Cylon Earth were not from any particular "our Earth" location.
And I do think that the production crew is savvy/detailed enough to pay attention to things such as star fields and constellation adjustment.










