1.50 to 1.00 Downgrader Downdater 1.0

1.50 to 1.00 Downgrader Downdater Update #1: Dark_AleX, Yoshihiro and Mathieulh have now released the 1.50 to 1.00 downdater. Remember that to install this program, you will need the help of someone with a 1.00 PSP, and as always there is a risk to brick your PSP whenever you write to the flash memory