help plz install pkg

plz plz help me....
i have replaced a few eboots for modified eboots any they are great but there seems to be more and more games with pkg files and i cant seem to get my thick head lol around the i.e
1. Install the PKG. so i install this on usb dongle onto ps3 right?? i have done that bit
2. Copy all files except the EBOOT.BIN, default.self and default_mp.self inside the "USRDIR" of the game and paste it inside the "hdd0\MW2_GAME\USRDIR".

so i did as above copied everything inside the USRDIR" of the game except those 3 things as stated i made a new folder called MW2_GAME inside the usdir of the game is this right it kinda makes the game twice the size from
bout 7gb to around 14gb is this right ...
i cant seem to get it to work so i guessing not lol
plz help
and thanx for any input

Did you like how long it took you to find the information you had to find thus far? How much longer do you think it's going to take for other users to find useful information when you're making a post asking a question about something outside of where you downloaded it from? Point being, all of you new users keep on creating new threads to ask questions instead of just posting the question in the thread where you got the files. That way, all the information is in one place and you're dealing with other users that have done the patch already. Makes more sense doesn't it? Anyway, thread closed.