please delete this topic, because i dont know how

i hope some 1 here can help me, because i got an problem.
The problem is that if you want to give an album an cover, you need to use "the funtion" ( dont know how to call it otherwise ) but, they cant find an cover, but i got the cover (.jpg) on my computer,
so my question is: what must i do to get an cover and load in onto iTunes

 

i already know how, but i dont know how to delete fthis topic, so administrator, please delete it.