You just want to prove you can receive a web page?
Create a new probe, of type TCP, agent server, in Send put the URL between the Get and HTTP/1.0\r\n\r\n. In the Recieve box put a word that exists on the web page in question. For example maybe you are grabbing the web page
http://www.google.com the word "about" is on that page.
Send: GET
http://www.google.com HTTP/1.0\r\n\r\n
Receive: about
You can do connect only to test if a port is open (the thing you said you don't care to test) or set the port to something other than 80 if your web server is on another port.
HTH,
Lebowski