asp.net Keyword Density Analyzer script

HI! I need an asp.net 2.0 (C#) Keyword Density Analyzer. Please visit these web sites for examples of what your script has to be capable. Examples: 1) [login to view URL] 2) [login to view URL] 3) [login to view URL] Minimum features a) We need to be able to pass many parameters. The most important is the web site http:// address. b) We have to be able to get as result The Top(X int) keyword that the density is the highest c) We have to be able to get as result The Top(X int) Total 2 word phrases that the density is the highest d) We have to be able to get as result The Top(X int) Total 3 word phrases that the density is the highest Thank you We will pay 50% once you submit the script and the balance 1 to 5 days after we tested the scripts. If everything is fine, we'll paid the balance the same day. We don't want copyrighted scripts.