4 desktops

[reinaldistic]

i've seen a lot of images on the internet like this:
http://org.dailyflashid.com/gallery/ubuntu.jpg
http://www.communitymx.com/content/source/B462B/ubuntu.jpg
how can i make it so that i have 4 desktops instead of 1? mine looks just like this:
http://www.pendrivelinux.com/wp-content/uploads/ubuntu804.jpg
xept the wallpaper is diferent...

[ww711]

Right click on one one of those 'workspaces', select 'Preferences', from there you can select how you want them to be positioned and the number of workspaces you want - columns and rows.