Actually, I'd recommend the Torimod.
1. Get a new mod, put it into C

Program Files\Toribash\data\mod
2. Download Torimod, and install it (follow install instructions)
3. Open Torimod and choose where the toribash.exe is (usually in C

Program Files\Toribash)
4. Click the mod in the left and play.
5. Any questions regarding ToriMod, please post in the ToriMod sticky.