Q: albulms are missing what happenned and how do i get them back

Well a bit more in the way of detail would be nice...

Most likely scenario from what you've said so far is that your iTunes database is corrupt and iTunes has opened up with a blank library.

Empty/corrupt library after upgrade/crash

Hopefully it's not been too long since you last upgraded iTunes, in fact if you get an empty/incomplete library immediately after upgrading then with the following steps you shouldn't lose a thing or need to do any further housekeeping. In the Previous iTunes Libraries folder should be a number of dated iTunes Library files. Take the most recent of these and copy it into the iTunes folder. Rename iTunes Library.itl as iTunes Library (Corrupt).itl and then rename the restored file as iTunes Library.itl. Start iTunes. Should all be good, bar any recent additions to or deletions from your library.

See iTunes Folder Watch for a tool to catch up with any changes since the backup file was created.

When you get it all working make a backup!

tt2