curl posting to remote form

[blogit]

I am trying to write a script to take the search string from the form on my site and enter the string in a form on a remote site then retrieve the results from the remote server and display them on my site. Can anyone give an example on how to do it. I saw an example with amazon.com but the curl example inserted a string into the url, the site im trying to get data from uses asp and after i run a search there is no change in the url so is there a way to take the search string from my form post it to the remote sites form field and get the results? Any advice is really appreciated

thanks