The article above jumped the gun.
The real terms are:
£600,000 transfer fee
£150,000 after 5 first team appearances
£150,000 after 10 first team appearances
£150,000 after 20 first team appearances
£150,000 after 30 first team appearances
£150,000 after 40 first team appearances
£200,000 on England appearance
Leeds receive 20% of profit on future transfer fee
Not quite as good a deal, future fee percentage is very high!