Hi. I am making a series of levels where you play as boba fett and I want to have his jetpack and flame thrower to run off of (limited) fuel. I have made the powerup 3do, but I need someone to do the .cog or tell me whats needed for this if possible. Thanks.

You will need to edit the templates...
If you mhave a jetpack cog, just add a section for powerups and remove the recharge section.

And add the powerup to the items.dat list, with the same flags as energy/power cells. Use an unused bin number, though...Did I help?
If not, I'll (try)to walk you through how to do it...