Hunterrace52

Hi everyone,
I'm sorry if someone has already written a similar topic, but I don't find nothing in the forum that help me with my problem.
I just upgraded my version of kontakt, from 5.0.3 to the latest 5.2.1 on Mac OSX 10.8.5
With the version 5.0.3 I had a custom library that I create following these steps:
1- Create a directory and name it as your nki sample's library. i.e. I have the PinkNoise Revolver package and I named the custom library directory as 'PinkNoise Revolver Library'.
2- Create 2 directories as 'Instruments' and 'Samples' inside your Library. If you have nkm files in your package then also create 'Multis' directory.
3- Put the nki files inside the 'Instruments' directory and the samples into 'Samples' directory. Put the nkm's into 'Multis' if you have any.
4- Open Terminal and execute these lines:
cat /dev/null > '/Users/Dave/Desktop/PinkNoise Revolver_info.nkx'
cat /dev/null > '/Users/Dave/Desktop/PinkNoise Revolver_info.nkc'
Put these 2 files into your newborn Kontakt Library directory.
5- Also put a 574x99 resolution wallpaper.png image file into your Library directory. (optional)
6- Open Terminal and execute this line:
sudo plutil -convert xml1 /Library/Preferences/com.native-instruments.Content.plist
Then copy /Library/Preferences/com.native-instruments.Content.plist file to your desktop and open it using Textedit.
You will need to add 2 lines for your new Kontakt Library. Make sure that the k2lib value you enter is different than the existing ones.
The lines that I added for the example:
<key>k2lib0600</key>
<string>PinkNoise Revolver</string>
Save the file and move it back to /Library/Preferences directory.
Run the Kontakt and add your custom library by using the 'Add Library' button.
7- The directories that the nki files search for their samples is changed by moving them. So open the nki files under the 'Instruments' menu of Kontakt and point the 'Samples' directory. Save/overwrite the nki instruments and that's all.
with the version 5.0.3 I had no problem, I was able to add the library and create my custom instruments, but with the latest version of kontakt when I click on 'add library' and choose my custom library nothing happen, the program get the command but no library appears in the library browser.
Does someone may help me to figure out the problem? Maybe there is another way with this version of kontakt to add custom libraries?!
Thank you very much.
David