want to customise the message display by adding extra text in Logon Help forgot password link

Dear All,

  I am implementing Forgot Password functioanlity or link in my Portal ( SAP EP7.0).I am getting "Logon Problem ? Get Support " link in my Portal welcome page.When I am clicking this link ,I am getting pop up asking me to enter user id and mail id.Everything is working fine.

But my real concern is I want to customise the message display in case wrong user id or mail id or wrong question answer.

The current message displaying as "User information incorrect. Cannot send e-mail with new password" and I want to display it as

"User information incorrect. Cannot send e-mail with new password ,Please contact your Administrator"

If I will tell in one sentence ,I want to customise the message display by adding extra text

For example: "User information incorrect. Cannot send e-mail with new password"

Requirements:"User information incorrect. Cannot send e-mail with new password ,Please contact your Administrator "

Kindly help em out  how to do it ................

Thanks,

Sanjay Mohanty