Should I take the Old SAT?

So I was kinda late in preparing for the Old SAT as i just got the Kaplen program. Should I invest anytime in trying to take the Old SAT on January 23rd even though I have just under 2 months of prep? Or should I just study for the new SAT and focus on doing well on that one. Most of my teachers are telling us to take both, but I don’t know how colleges are going to view each score. Will they see them each as a different test? Thanks for the help!