Posting XML

Dear All
I have success with posting an xml file to another server , so I have 2 asp files the first one is the poster to post an xml file , the second one is the receiver file to receive the xml file by http request and send back a response to the poster file , but I don't know hot to process the posted xml file inside the receiver file , I can only send back a response ???? Any help please how about processing the xml file before send back the response to the first file (poster)