How To Create Search Engine for Image.

Hi,

I am looking out to make a search engine to retreive image from diffrent website and show the link and image on the page.

For this i need to work on SQL Server and store the URL or the image in the database and the keyword .

Well i am confused how to design the database and how will this all can be done .

Should i use the XML from the website .

Please anybody help how should i move ahead and what shal i do and how.

Your help Appreciated.