Can not edit my songs in the itunes library

Question

Can not edit my songs in the itunes library
Windows7 64 BIT / SP1  /  Self-built PC
Latest ITunes version 10.4
80GB Classic 5th GEN IPOD
      I had almost full of content on my ipod,then I upgraded from XP HOME(32) to Windows7 (64 Bit)
What I did not want to do was to spend time loading All 75GB back on the itunes Library, but decided I should restore the ipod, since it's been acting up a bit. I did not deactivate the last XP OS Computer prior to formatting the harddrive,because I thought it would not matter, since the software would be GONE.
So I downloaded another itunes/Quicktime on this new Win7 O.S., and created the same playlists I had before, then dragged each genre/main music folder into the appropriate folder in itunes.
I clicked on a few songs to change the Info, but they are all greyed out and I cannot edit anything....I never had these problems before.
How to I re-enable to EDIT the INFO again?   Thank you!
(itunes also told me I had authorized four out of five computers for this device...WHAT?  There is only one computer, and my one ipod.  
......BUT.......My sister has a 16GB itouch, and I put my songs on her itouch, also charged it up on my computer, since she does not have her own computer yet. Will that mess anything up? 
Can she create her own User apple ID/password, then be able to edit her stuff from my computer? AUTHORIZE her itouch on my computer, or do I have to create her own playlists (because I have an 80GB, and she has a16GB, obviously, she will not get all mine on her small device) then checkmark ONLY her playlists to manage on her itouch, from my computer?
A few people told me to try this....
     I Plugged in the OL' ipod, Under the SUMMARY TAB, and under the OPTIONS TAB, I changed what I had, which was "SYNC ONLY CHECKED SONGS AND VIDEOS" [B]to MANUALLY MANAGE MUSIC AND VIDEOS"[/B]
THEN underneath that, "OPEN ITUNES WHEN IPOD IS CONNECTED", "AND MANUALLY MANAGE MUSIC WERE [U]BOTH CHECKED[/U]."
THEN - I went back into my Win Explorer Main Music folder,and under PROPERTIES, I unchecked the READ-ONLY Box, hit APPLY, then OK, then I went back into the itunes library and tried to edit a few songs, but they are all still greyed out and not editable.
I went back into the WIN EXPLORER main Music folder and checked to see if the READ-ONLY was still unchecked, but it automatically reverted back to READ ONLY.
Another question I wanted to ask was this. I have my main Music Folder on my Storage HDD. They are MP3 files, and listed as Country,Blues,Classic Rock,Reggae,etc.  After I installed the WIN7 OS, I had to download itunes again/Quicktime,then dragged each main music folder into the appropriate playlist until they were all there.  Since my itunes app is on my Boot Drive,and my main music folder on my Storage drive,am I wasting or adding any needless HDD space having on both HDD'S? or is this a non-issue?  Thank you!

Answer 1

Hello All!
Well, after posting the help messages, I went diggingthrough both my itunes folder on my (C) drive, and then the Music Folder on my(F) Storage drive where I keep all my music files and then went into securityand in each line, I made FULL CONTROL, APPLY, then went back into iTunes afterplugging my ipod in and clicked on MANUALLY MANAGE TUNES.
I don't know which did it, but now I can edit the songs. To answer yourquestion, I was able to play the songs, but just couldn't edit any of themuntil now. Thanks for your Reply!