First off if you don't have wine installed, run the program Synaptic (used for installing programs) and install wine. (synaptic is pretty straightforward to use)
Next copy all the files from the WoW cds to a directory on your hard drive.
Now open a console and change to the directory where you copied the files. (type in "cd " and then the directory you put the files ie. "/home/kencaz/wowdir")
Install WoW as you would on windows.
When that is done right click on your desktop and select create launcher.
Fill in the name with whatever you want.
for the command put:
wine "/home/kencaz/.wine/drive_c/Program Files/World of Warcraft/WoW.exe" -opengl
or wherever you installed it
Select an icon if you want and click ok.
Double click on the new icon on your desktop and it should run.
Don't forget to delete the files you copied from the cd to free up some hard drive space.
I hope this helps you!