fileName   is  /var/mobile/Applications/27xxxxxx/Documents/19_July_2012_11_28_02.png 
n-19_July_2012_11_28_02.png 
iCloudFile is  /private/var/mobile/Library/Mobile Documents/3GXXXXXX/Documents/19_July_2012_11_28_02.png 

[fileManager  copyItemAtPath:fileName toPath:iCloudFile error:&error];