As I said earlier, temporarily take out your present download.dat & bak files & replace them with the old ones from the folder you rescued the incomplete files (probably best to do it whilst LW is closed.) Then research the original topics again & you should see icons in the search results with a ripped/torn thread of paper. Then just reselect them to downld. This is the safest way to do it. 2nd choice would be to search the topic & use the Resume button from the library window.

Without these older downld preferences then your older incomplete files are next to useless. The new downld prefs will not recognise them. You can try to force resume them but will most likely start from zero.

If your computer crashed whilst LW was running, then your older incomplete prefs might have become corrupted. This is usually when they will become corrupted. So if you often have computer problems, it might be wise to backup your downld.dat & .bak files reasonably often. This is not a difficult thing or time consuming thing to do.