Note: This procedure involves editing a game file; create a backup copy of the file before proceeding.
Use a text editor to edit the "house.txt" file in the "\ea sports\fifa manager 08\user\objects" directory.
Change the very last line to:
By doing this, when you buy the Palace you are given nearly $900 million into your personal wallet (which can be donated to the club).
(supplied by: davidgoh)