setting via gpo

Estimados, Necesito aplicar Proxy a IE para 2 Ou dentro de mi AD 2000 (Nativo). He revisado las Administrative Template, pero no he encontrado nada que me sirva. Agradeceria vuestra ayuda.. Saludos Marco.

From my internal location, i can connect to the server and launch applications using both http://caeserver and https://caeserver.mycompany.com. And from external location, i can connect to the server and launch applications using ...