After you set up the LW options when you 1st install or 1st open LW, there's 3 folders that will be created. One is the LW preferences folder which is called .limewire & is usually found here for windows users: C:/Documents And Settings/your_username/.limewire
The 2nd folder is your downld folder & is whatever you called it. By default it's called Shared. And is usually by default anyway, located here: C:\Documents and Settings\"your account name"\Shared
The 3rd folder is called incomplete. Which of course is where your partially downlded files are stored until they reach 100% by which time LW will move them to your downld folder. Also located in this folder is your downld preferences called download.dat & bak (these should normally never be touched!) The incomplete folder is always stored at the same directory level as your downld folder.

There's a folder within your LW Library window which is called Saved Files but this is really a psuedonym for your LW downld folder. It is there so you can view your downlds even if you're not sharing your downld folder.

If you have a folder called Uploads, then where is it located? Where did you see it?