i am looking for some php software that can index sites, but make it only so certain pages are indexed, and then put into a special category.

for example:
site: drawingtips.net
pages:
index.php
?p=33
?p=32
?p=31
?p=30

only index pages that include: ?p= (index.php will not be added to the database)
and then all put all those pages into category: "Drawing"

I then want users to be easily able to search the database, and browse by categories.