That's probably not going to be good enough, but if you want to give it a try, you can download episode 104 for free! Then, if it doesn't work, you're not out any money, just time and heartbreak. 'Til you get a computer from this millennium, anyway.
EDIT: Actually, I take that back. I don't see the option to buy individual episodes anymore, which means you can't get 104 by itself for free, either. I suggest waiting 'til you someday have access to a nicer computer.
EDIT AGAIN: OK, they just make it hard to find. Try at http://www.telltalegames.com/samandmax/lincolnmustdie