You need to learn to speak HTTP. All IO::Socket does is help you establish network connections. It doesn't do anything as far as the protocol you use on top of that connection (HTTP). After you establish your connect, you need to send a properly formatted HTTP request (e.g.:

GET /some/directory/file/script.whatever?arguments HTTP/1.0
Host: www.example.com
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And parse the response headers that you get in reply:

HTTP/1.1 500 Internal Server Error
Server: whatever
Content-type: text/html

My bad.
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See http://www.w3.org/ for details on the HTTP protocols, or examine the LWP and/or the HTTP set of modules for information. You are FAR better off finding a way to use an existing module. Good luck.