Is it an auto or manual? I've heard the Tacoma autos suck the power big time, even with a supercharged V6.
I'd say the usual... focus on the intake, exhaust, mabey a chip.
If that isn't enough, I'd look into getting the supercharger to spin a little faster. I'm sure you can find an aftermarket pulley that's a little smaller. I doubt it'll be a mod that works with the warrenty though. I don't know how much boost the stock config. makes, but you'll have to be careful. Too much boost builds heat, which kills power. Also, the addition of an intercooler might help, especially if you spin the blower faster.
I did a quick search & came up with this-
http://www.minitruckinweb.com/tech/0501mt_tacoma/