Reply & Quote & Reply are in the grey bar at the bottom of each message. As is Edit if it's your message. But note that the 3 sample forums do NOT allow you to post (they're just there for sample browsing), so there won't be a grey bar. You'll have to go to the official test forum at the top for that.

View Code was actually never originally intended to be a feature (you could just try to edit anyone's message), but I've kept it around, it's just moved to the "view single post" screen.

Finally, make sure it shows you as logged in in the upper right. The new forum requires the new login cookie (used ever since I added private messages) and if you don't have it you won't have any of the new member-only features. Most of the old forum, here, works with either cookie (although you won't have private messages unless it's the new one).