You're right. The link above is only for API submission (and even that won't work using http - you would need to use https).
The portal in test2 is at http://test2.myportal.easylink.com
correction:
link :https://test2.myportal.premiereglobal.com/welcome.do
No, the test2.myportal.premiereglobal.com address is being phased out and should not be used.
Portal access should be via http://test2.myportal.easylink.com only.
