The quotes are posted in chronological order. I did this to show that although he's never been soft on immigration, that he is getting tougher on it. I haven't heard him say anything recently stating that he wants millions of illegals to be put on a track toward citizenship. Romney has stiffened on the issue as it has become more of an issue (witness his decision last week to be able to mobilize state troopers to enforce immigration laws.) I like the fact that he's much stronger than the Senate bill (though a Tancredo-type will be hard to find as a serious presidential candidate)
Personally, I say document these folks, make them pay taxes but get no more benefits than they are currently getting. If they want to become citizens, have them leave the country and then come back in legally on a specialized guest worker program (only for previous illegals that have US roots and family) that can lead to citizenship if they are fluent in English and law-abiding.