automatic login - using Windows 7

[#1]

I want to login automatically at Plusnet login. I need to enter the address in 'manage your credentials'. What should I put here? I've tried a few combinations but without success.
Help needed and welcome!  Tony. 

[#2]

misread your post,
now i've read it i am really confused,
can't find references to 'plusnet login'  'manage your credentials'
does some combination of autologin found at:
https://portal.plus.net/my.html?action=myconnection&?membermenu=connectionsettings
allowing cookies in your browser may help
good luck...
Toby gaffney

[#3]

is it this?

[#4]

Yes, it is!  I get there via Help or Search where I type in Manage your credentials.
To access my Plusnet mail box I must login - I should be able to do this automatically, ie just by clicking on user name section and password section. I am assuming that I do this via Manage your credentials. If so, what address do I enter?
Thanks for your late night efforts.
Tony.