Activating the Proxy Service

Hi friends..

this is newly configured PI7.0 sp14 server... there are many post instlation steps are pending..

in this proxy configuration i am doing now.. i have seen this blog..

/people/vijaya.kumari2/blog/2006/01/26/how-do-you-activate-abap-proxies

in this i have a doubts,,is this onley configuration i have to do for useing proxy..

and in this blog it is for XI rite are there any changes in the name port and Path Prefix: /sap/XI/engine/?type=entry

please clarify all the steps to complete this proxy configuration and ready to implement proxys in my system..

Thanks and Regards

Vijay