Problem in Publishing to INTERNAL site in se80

Hi All,

I have created an Internet Service in Se80. Now i need to publish it in INTERNAL site.

My problem is that INTERNAL is not available in the drop down list.

Utilities-> Settings->Under Tab "Internet Transaction Server" -> Publish " ON Selected Site".

What i need to do, In order to get that in the drop down list.

Thanks in advance.

Pradeep Alex Luke