Question: I can't see any items that I buy
Answer: If you buy a weapon(or any other item) from an NPC and its not in your inventory
Don't freak just re-open your inventory or if that doesn't work re-log. - Demonic

Question: I can't see any thing any NPC says. How can I fix this?
Answer: Download this and put it in your Flyff folder. - RicSaS

Question: It says "User Id already exists" whenever I try to buy something.
Answer: Download this and put it in your Flyff folder. - RicSaS

Question: I'm level 120 how do I become Master or Hero?
Answer: Re-log you will become a Silver Master and next time you hit level 120 re-log again and you will be a Hero.