Lost my settings, photos, music, addresses and want to retrieve them

Question

I don't know what I did, but I did something bad. I am missing music from itunes, pictures from iphoto, Safari bookmarks, listings in my address book, email, and destop settings. When I go to itunes to buy music, it tells me that I don't have an account, though I have purchased music from them before and when I try to log into my sbcglobal account through Mail, it also tells me I don't have an account. The icons in my dock have changed to question marks and, except for the blessed presence of my saved documents, my system seems to reset itself. I have tried the following:
In the Finder, go to the /Users folder.
Locate the new home directory, which bears the users' short name.
Add "_new" to the new home directory's name.
Rename the old home directory to the user's correct short name.
Log out and back in with the affected user account.
But in my /Users folder there is only the home icon with my shortname. There is not a new home directory or old one, there is only the old one, without those things I listed above.
I never deleted my music or photos, etc...but I did have to force quit my finder one day and this occurred shortly afterward. I have not logged into another account unknowingly.
I did moved some things around between my Home folder and my Applications folder, which I think may have been a mistake...though I don't really know.
Can anyone tell me how to recover all my settings and files?
Powerbook G4   Mac OS X (10.3.9)  

Answer 1

This is absurd, but I fixed my problem enough. I had moved the Library from my home folder, then it had replicated itself as a blank "library" folder and sat there hoping I wouldn't notice, which I didn't for a very long time (ahem, two months...very embarrassing).
I found my original Library where I'd put it (in a folder in my home folder where, I guess it couldn't be read) and put it back in my home folder, first renaming the phony Library "Library2". Then I removed everything from my dock and reopened it from my home folder and applications.
Now everything's pretty much back on my computer...though not exactly as it was. All the photos I had deleted are back in iphoto, and all the songs I'd deleted from itunes have been restored, which is interesting, but not depressing as it had been All my bookmarks on Safari, my email, and my address book entries are back as well. My slideshows are still missing, as are my playlists and my preferences but I am so happy to have the things back that I was afraid I lost that I really don't care. I just removed the question marks from my dock when I got everything back.
Not a perfect solution, but that's fine.
Oh, and notice that my name has changed? Whatever I did made it so that I was masquerading as another user on my own account. desperatetimes is gone, I guess.
Thanks so much for responding with help!
-desperatemeasures
Powerbook G4   Mac OS X (10.3.9)