use multiman 1.14.01 to load your games you must replace them with their orginal eboot and param.sfo files and also the app/home doesn't mount correctly in 3.55 only some games work with it its best to keep a disc in the system and just mount on the drive and load from it.
Use multiman 1.16.00 FULL, I tried using Gaia but just like when I tried with 3.41 it didnt work. On 3.41 I used OpenManager with no problems at all and on 3.55 KMEAW I use Multiman and it works brilliantly.
I think MULTIMAN no longer needs the fix permissions or lv2 files to work though someone will have to confirm. I havnt had to use them although i have both pkgs installed on my ps3.
Trust me though, best combination is KMEAW CFW as it's already patched and use multiman 1.16 as it has the permissions and lv2 done for you.
This method has made me £60 tonight and I can now sell my ipod nano 1g for £30 to me step dad ha.