Ok now I'm so confused. Let's start again.
For your files just sitting there & not downloading, click on the link here. Follow the instructions there, revert popups to default & then change your answer within the license warning box.
License (click)
Now your files should move into the download pane when you click to download!
The padlock that you saw...is that the padlock that shows up in the orange banner at the top of LW's interface? Like the gif image below.
If that's what you're seeing, it only applies to LW updates that show up in your searches. Don't download LW updates from the network...if you want to update or upgrade, go to
www.limewire.com & download safely.
Make sure you're using a good AV program. Keep it updated & scan all files that you download
before you open them. There are infected files all over the network...you have to be careful.