How do i make a search engine like download.com

part one
okay i got down part of it lots of bandwith got that.amount= unlimited
part two
I know i need a script pad kit had error in it twice it sucks don't use it for; me or any else.
part three space not always need but i got it too. 3 gigs just for results.
and my logo.

ok it's called a directory similar to what yahoo has done but what download.com has done with just download catagories

part four.... i need a script like yahoo search can you find me one that ads the results automaticly and has a admin panel with a remove fuction and one more thing it has to be able to have at least about 60,000 results. in the directory it may also be called "software repository" is what i need but good free one can you nice people look around for me