To have an easy install you'll need a press, bench vice, and if you're not wanting to spend all day working the old bushings out, a decent torch. You can get the old bushings out with a 3 jaw puller, but be prepared to get hurt. I know I did with the front bushings. Used a press for the rears and it was a lot easier/safer.
Big thanks to Eric for padandwheels.com!
http://www.padandwheels.com/mr2/susp.../bushings.html (multiple pages within)
http://www.padandwheels.com/mr2/susp...rbushings.html (again, multiple pages)