Sounds for me that you try to download files, which display hundreds of hosts ( or up to hundred), Stay away from them since those are most likely faked files yyou'll never be able to download.
Choose files with 10-20 hosts and use the "Look up with Bitzi" function of LW to check the files being really the ones you want (right click the file in the search result and go Advanced>Look up with Bitzi).
Some general suggestion about increasing your download success you can find here:
http://www.gnutellaforums.com/showth...search+results 