admin cant remove post with multiple replies?

[MacGig]

as admin, I'm trying to remove a post with 5 replies. I choose the first post and get this when trying to delete it:

You are not allowed to delete the first post in a topic.
If you want to delete this topic, click on the Remove Topic link, or ask a moderator/administrator to do it for you.

is there some setting I need to change to let me delete posts with many replies? Im not seeing a "remove topic" link. 

[skb]

Remove Topic is a button link right below all the posts and the page numbers. etc

[MacGig]

Remove Topic is a button link right below all the posts and the page numbers. etc

its not there on the theme Im using. perhaps a settings needs to be turned on or off?

[MacGig]

I found it. it was in a pull down menu in the theme Im using, not a button. thanks.