ASP.NET search page modification

We need a well versed ASP.NET programmer to modify a page in our CRM/Helpdesk to allow searching for phone numbers from the URL string... EXISTING SETUP: [http://<crm-url>>/[login to view URL]][1] URL brings up a page that the user must type in a phone number to search for the customer's account. PROPOSED CHANGE: [http://<crm-url>/[login to view URL]][2] would bring up the same page but also display any records with that phone number assocaited with it. This is a production server, so modifications should be copied to a new file and made from it.? We have FTP/IIS access if needed