Wow this tutorial is the sex for showing an Image and a text view in a custom listview:http://www.softwarepassion.com/android- ... -adapters/
As for getting the album art in the first place hmmmmmmmm
Well it's possible cos this guy has done it:http://www.blog.mylittlebigapps.com/album-art-grabber/
(not a help I know) but a nudge!
This guy get's his album art by querying the Yahoo images search: Yahoo
says it gets album art 9/10
This guys has a few links to album art http://www.frontpagewebmaster.com/m-358590/tm.htm
and mentions Aramzona API good luck anyway sure thats more than enough to get you started