from http://forums.macrumors.com/showthread.php?t=377933
rBST uses the "extended springboard" section, right? Turns out, that breaks the ability to reorder icons. So what you need to do is SSH into
/System/Library/CoreServices/Springboard.app
and get M86AP.plist and put it on your computer.
Open it up with a text editor, and you'll have to bring the apps in the "thirdParty" section and take them into the "iconList" section.
Then you can reorder them how you like.
Save the file, and put the file back into the phone. It's probably a good idea to keep a backup of the file.
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