Why are some games not working with the PS3 Hack?

[Badabingbangboo]

Soo hey there, my first thread, question, whatever (:

I was searching for it the last few days, but got no answer, so i decided to ask here at ps3news
My 2 questions are:

1.) Why are some games not compatible with the PS3 Hack and some backup-managers. Games like Call of Duty: Modern Warfare 1 and 2, or the new prince of Persia: The forgotten Sands.

2.) Sooo, is there any chance to get these games work or not.

Don't know if it's already been answered , but I would really appreciate some helpful answers.

Greetings

Badabingbangboo

[PS3 News]

1) An explanation was covered in this article update: http://www.ps3news.com/ps3-hacks-jai...-tool-arrives/

2) Since then a temporary work-around has been found, see here: http://www.ps3news.com/ps3-hacks-jai...nager-on-3-41/