How to install Nimbuzz and Fring on the Nokia 5800 NAM edition

For those who own a Nokia 5800 XM and are getting "Unable to install" and "Update error" messages, here's the solution:

• Turn OFF/On your 5800 XM.
  
• Activate "Offline mode" as your profile.
• Try installing again.

Hope you now can enjoy your VoIP applications.