why can't I download a purchased album to my ipod

Hi pattib37,

Welcome to Apple Support Communities.

It sounds like you've purchased and downloaded tracks from the iTunes Store that aren't syncing to your iPod Classic. Take a look at the article below, it provides some suggestions that may help, like updating iTunes or authorizing the computer.

Some songs in iTunes won't copy to iPod

http://support.apple.com/kb/ts1420

Software needs to be updated
Download the latest version of the iTunes and then update the iPod.

Media file not authorized to play on your computer
Double-click the media file in your library and enter your account name and password.

Too many accounts
There is already content from five other iTunes Store accounts on the iPod.

The latest version of iTunes explains most of the reasons why some files aren't sent to the iPod. Get the latest version of iTunes here.

If you are getting no message explaining why specific content is not being sent to your iPod, you may need toreset warnings on your iPod.

-Jason