import web service problem

Hello,

ive been trying to use a web service provided by my company in my flex application. i click on the 'import web service' option , and give the URL at which the WSDL is available. but gives an error-
'Unable to load the wsdl. Specify another URl'
This is probably because the WSDL doc is password protected and i have to type my login and password to access it. Is there any other way to get the WSDL doc to the Flex Builder software?

Thanks,
Pranav Modi