I can confirm you that the PS3 Proxy Server works fine with PS3 2.50. So go ahead and update if you don't mind about the BD-J emulators.
I haven't updated yet to 2.52, but I guess it should work too.
Originally Posted by Bjornp
I can confirm too.
Guys I'm under 2.52 and I want to try Killzone's Beta and other games like Siren but the thing is that I faced a problem during the install process. And according to you two, there is a solution. I just want that someone helps me to do this stuff and finally install all what I want ^^ and by the way thx