Man, now you frightened me.
I looked in my incomplete folder, and luckily enough, it's still in there.
I had to navigate to MyDocuments/LimeWire/Incomplete/MYDOWLOAD
Everything is still there so, can I do something with it to get it resumed?
EDIT: I just figured out how it happens that it is still in there. When I cancelled the download, I had also some trouble with my screen resolution. So I used a restore point, perhaps that's the reason why everything is still in there.
Thank you.