This blog post was too large to post it on here.
So I posted it on my forum: http://forum.techfurs.net/index.php?topic=8 

If your still on Ubuntu 10.10 you know every time you open the Update Manager it alerts you to upgrade to 11.04. You're wondering if there is a way to remove the annoying box? Yes there is!

After playing a few days on the gconf-editor (Linux like regedit) I learned how to do it and it wasn't that difficult.


=====If you have gconf-editor installed=====

Steps:

1. Open up the Terminal and type in gconf-editor
   
   
2. Click on apps > update-manager > untick “check_dist_upgrades”
   
   
3. Exit out gconf-editor of then logout of Ubuntu.
   
   
4. The Update Manager should not ask you to upgrade again!
   
   

=====If you don't have gconf-editor installed=====

Steps:

1. Enter this into the Terminal: sudo gedit ~/.gconf/apps/update-manager/%gconf.xml
   
   

(Replace gedit with the text editor you use like nano, mousepad or kate)

1. Enter your password in the terminal.
   
   
2. Add this code under <gconf> <entry name="check_dist_upgrades" mtime="1309071139" value="false"/>
   
   
3. Save and exit then logout of Ubuntu.
   
   
4. The Update Manager should not ask you to upgrade again!
   
   

Feel free to comment on this blog post if you need any help!