It was VERY annoying to find that after waiting for a download I was unable to open them because they were showing up as "Lime Wire Document" in my shared folder. So I did some reading & experimenting; this works wonderfully.

If you cannot launch the .sit from your Lime Wire Library, then go to your Lime Wire folder & open up the Shared Folder within. Here you will see that the "File Type" is not a .sit, but a Lime Wire document. I used to throw these away. But there is a way to unstuff programs that is very easy. Like the mp3s that can be played outside of the Lime Wire library, you just have to move the file that won't uncompress directly from Lime Wire or your Shared folder into Stuffit Expander itself.

Just open up "Internet Utilties" in your Applications menu. Select Aladdin folder. Drag the Lime Wire document file that will not uncompress on top of the Stuffit Expander icon. Then, double click the Stuffit Expander icon. Go to File and then Expand. It will unstuff the document.

Good luck!