Vertical Y axis alignment problems !

[Chocobo]

Hi,... I own a PAL PS2 with Messiah to play PS2 US games. So far everything is ok. But I also want to play PSone US games like Xenogears and Chrono Cross.... no here is the problem !

I have a large black border at the bottom of my screen. Is seems that the Y axis is not properly set somehow. The screens tilts towards the top. Any way to fix this ? I saw someone saying to use a Breaker Pro and boot without video setting but I'm not sure that will work.

I saw my first (I'm such a newbie) NTSC2PAL fixes on Megagames.com. Forgive me to ask but what is that ?? Is that what I need to fix my Y axis problem ? Thank you so much for your time !!