I know I'm a noob for asking this but where do I put the items?
You have to insert them into the common3_en.pac, then rename that pac to common3.pac and put it in
"private/wii/app/rsbe/pf/system"
folder on your sd card.
If you need help editing the common3_en.pac, you can use Vile's guide, found here:
How To Edit Items With No Hexing