Ipod Touch music player displaying Itunes purchases that I'd renamed/retagged...under the original name/tags

Hi,

I just bought an Ipod Touch to serve as a replacement for my old Ipod Classic, and have synched my Itunes library mostly without a hitch. The vast majority of the music is from CDs that I ripped into Itunes like a decade ago.

But: some stuff that I'd purchased on Itunes over the past few years is showing up as links (with the "download now" icon), filed under the tags that were originally listed.

For example: several albums by Suede are on my Touch under the name "Suede" and the genre "Brit Pop," but there are links to the same albums "The London Suede" (the name they're marketed with in the US) and the genre tag "Alternative". It seems like the songs that are listed are the bonus tracks on each album, probably because when I bought the albums, I renamed the band ("Suede," not "The London Suede"), renamed the albums ("Dog Man Star," not "Dog Man Star (Deluxe Edition)", and put all the bonus tracks from all the albums into a new album I titled "Suede Rarities." Now, all of those show up under Suede, but there's also "The London Suede" in the artists list, and "Alternative" in the genre list, but only for songs that I can't play with the wifi off.

Is there a way for me to remove them?

Thanks!