You can specify the domainname and or port of the proxy as follows:
myproxy.west-wind.com:8080
o.cHTTPProxyName
oHTTP = CREATE("wwHTTP")
oHTTP.nHTTPConnectType = 3 && Manual Proxy Config
oHTTP.cHTTPProxyName = "proxy-server.hawaii.rr.com:8080"
*** If the proxy requires a username and password use it
*oHTTP.cHTTPProxyUserName = "Username"
*oHTTP.cHTTPProxyPassword = "Password"