How do I rename songs on zune?

I bought music from Urge and need to move it to my Zune. So I ripped them from Media Player 11 to CD. On the Zune software side, I want to move each single song into the appropriate artist and such and have the album art download. If I try to rip it, it goes into an album of various artists, I can never seem to change the album art for one song without affecting EVERY song that was on the original ripped CD. How do I do this? I have various different artists and rarely a complete album...just spot songs.How do I rename songs on zune?u cant ive tried. i have the 4 gb. sorry