Great news, it is working for me. i have a pal ps3 slim with cfw rebug 3.55.2 update 0.7 with 4.25 spoof.
i fixed the 27.cer file with the original one and replaced the 3 files that i dloaded from this post.
Tekken 5 dark ressurecion works now (got my ass kicked hehehe), street fighter 2 hd remix works (also got my ass kicked again), mortal kombat arcade kollection still works, all those are psn games but i tested tekken tag tournament 2 online and it hangs after i press x ok button, so online pass patch is needed.
Mortal Kombat 9 (+Komplete Edition) still no connection on ranked/player match and in rooms, i can go everywhere online in the menus but no player vs player connection, it just says unavailable, dont know if there is a patch needed for that.
In other words, it is working for me to get online. My TIP: play psn games online, real games dont work well (update etc etc bla bla things and stupid online passes)
Thumbs up for making PSN possible again!!!!