Program with sps 2003 Web Query Webservice,would you like to share your thought?

   These days i'm doing a search model base on the sps 2003 Web Query Webservice,it contains three functions:1.can search portal content;2.can search share folder content;3.can search Exchange public folder.

   I  have realized mostly basic functions,but it's expansibility is very bad:)

   If you have some good suggestion,please contact me,thanks a lot!!!