First thing is that your home computer and the programs on it are completely irrelevant.

The computer and the programs you need are on the server.

One easy option, but not very flexible is to use one of the existing search tools on your website, this would not let you search by a specific criteria. You can find the code for this at various development websites, and your ISP may even have one set up for you.

The second option is to set something up like Chipmunkey. Chipmunkey is hosted on a server which provides a Database program called MySQL, there are other databases you could use but MySQL is popular because it is free. Remember it must run on the server so you need a host who provides it. I use a programming language called PHP4 to code the webpages to read and search the database. PHP4 also must be run on the server.

There are other languages that can be used.