Problem with Script task in SSIS along with WSDL file to call a web service

i am trying to create a ssis package with a web service task in it, which will call the web service available on our intranet, everything is fine except that the httpconnection that is to be used has a max of 300 seconds for the timeout property, but i want atleasat 30 minutes timeout connection.

Then i created wsdl file for the web service and tried to access it through the script task and call the web service, but i am getting error
[b]Server did not recognize the value of HTTP Header SOAPAction: XXXXXXXX/B]

Now what i want to know is

1. Can we increase the timeout of the http connection in SSIS
2. What might be the reason for my problem in the second case (script task)

Thnx in advance.

I have crowsed a lot on net, but didnt find any correct link.. Any forum pointers will also be appreciated......