Razor Hi.
When a file says, "need more sources" Simply right click on it & choose Get more sources.
check out this link about Fake files.
http://www.gnutellaforums.com/download-upload-problems/63993-fake-files-in-search-results.html
P.S..is ther a way to change the download format from KB/s to kb/s (kilobites to kilobits) ? = Not to my knowledge.
Peace.