Web request with SPD 2007

Question

I need to create in SPD 2007 a Server-side script Datasource with the below URL: http://zeus.avratours.gr:81/cgi-bin/abtwsac.exe/SssXmlAvraRequestHandler this script needs an xml feed as parameter in order to respond to HTTPPOST:

printf("'<'?xml version="1.0"?'>' '<'aRequest request= "AVRA ACCOMODATIONS LIST"'>' '<'season'>' 2010 '<'/season'>' '<'/aRequest'>');"

any idea how to by pass the problem in SPD?

Thanks a lot