first, download from
http://cheatengine.org the cheatengine 5.4
2nd, search for .ax files in your C: drive and delet them ALL and uninstall if you have Realmedia Player stuff installed.
3rd, login in Flyff until ur in game.
4th, start cheat engine.
5th, Select process in cheat engine (the blinking button)
6th, select Flyff
7th, Type in the value box the penya you have and "First Scan".
8th, go to the game and earn or lose some penya.
9th, type the new value of your penya and click "Next Scan"
10th, select all the values that DOESN'T change in the left window and click the red arrow near it
11th, select now the values in the bottom window and press "Enter"
12th, change the values to any amount of penya you want.