newbie itunes match questions...

iTunes match and the Music, Movie and Book stores are finally available to Indian users. Without much adieu I signed up for iTunes match. iTunes is now matching my tracks.

When I go to the music library i see some songs with a cloud icon canceled out, some with a dotted cloud icon and some with no cloud icon. can someone tell me what these mean? does it mean that the sond is uploaded or does it mean that a match is found?

i would want to delete all songs for which a match is found and download a 256 kbps version of the same. so can someone guide me with it please?

one more thing, i was too excited to give my self a gift of 256kbps bit rate songs tomorrow for my birthday so i subsribed to itunes match post-haste. however, i noticed that when i right click on many of the songs and try and find the same of the music store, it shows the wrong match! i hope i haven't wasted Rs. 1200 on my birthday eve! 😝

one last thing, the match service seems to halt when my disply goes to sleep, also allowing my computer to sleep.

Neerav