The Playlist you see is not a true iTunes playlist. It is a list of what you are sharing in Frostwire, since you have sharing enabled in Frostwire's preferences>iTunes. I am assuming you are using Windows and you need to import them into the iTunes Library for you to be able to transfer them to your iPod. You can do this either by selecting Add to library in the iTunes menu>file, or you can drag them from your save/download folder (not the Frostwire Library) into the iTunes Library. If you are not sure where your Frostwire save folder is go to Frostwire>tools>options>Saving>save folder to find it's location.
You can either have the songs added to iTunes from the save folder (or another folder if you have moved them), or have a second copy added to the iTunes Music Folder, by going to iTunes>Preferences>advanced>general and enabling or not:- "copy files to iTunes music folder when adding to library" This information is taken from my iTunes which is for Mac. I hope windows follows the same pattern. If you use mac, songs can be added to the iTunes library automatically.
To search for complete albums add album or albw to your search albw is short for albumwrap which HOPEFULLY will be breakable into the original tracks usind Album Extractor X or Albumwrap extractor.
I'm not sure if that is what you were asking ...Album information is best found through Google or a site like Amazon.
Let us know if you need more help