Hi there!
Don't worry about the meteorite - it's a red herring. You can only buy the jacket after you've been to the Rubbish Dump. I'm not quite sure where you are in the game - have you got the speeder and been to the Rubbish Dump yet? Have you got the Contraband Detector?
I'll check back to see if you need more hints ASAP, I'm also posting a walkthrough soon and will put a link to it on the game's message board here.