Hi Mini_two,
1) First download FMM & unzip the files.
2) Next, you should have the game (FM) running with your game loaded as this is a "Memory Editor".
3) Run FMM. Note : if your game is nt running then FMM will show (on the buttom) "FM2008 not found, run the game please!".
4) Now, on the lower left of FMM are two buttons (List & Load), press the right sided one - "Load" & wait for a short while.
5) You can enter a players/club/nation/staff name or unique ID (you can find this through the game options - set "show unique ID") & press "go" for the search.
6) select the relevant player/club/nation/staff from the list. i.e : if you enter "milan" you will get a list showing the club (AC milan) & all players/staff with milan in their name.
7) the buttons on the right side of FMM allow you to navigate between different stats so if you want to change the contract or happiness go to "Contract", for CA/PA or Nationality go to "Info", & for playing atributes go to "Playing".
8) if you select an atricute you can now change it by typing a number & pressing "Enter".
Don't forget to press "Save" on the lower right side of FMM.
Note : some atributes range from 1-20 (player positions, mental atributes, some staff atributes, moral) while others range from 1-100 (most player atributes, relations, happiness) so try to experiment a bit before making major changes. Also, fitness can reach 10000 & jadedness can be negative.
other issues : on a "team" screen you can change the reputation, stadium details, & also list all the players from the team/club.
ask agin if you have a specific problem.
Enjoy, & remember : "It's only cheating if you get caught"