To turn on the navstrip manually, first go to you Manage Profile page
At the very top, before the information fields, you'll see "Here's where you fill out your Profile page. You don't have to display all of your info to everyone - check out the options below. You may also want to edit your comment settings or your viewing options." Click on the Viewing Options link.
You'll then see the Viewing Options module. The third section is "Navigation strip". In that category, you'll see two boxes that say "Always see the navigation strip when you view any journal or asylum" and "Always show the navigation strip to anyone who views your journal or asylum". You can turn the navstrip on and off by checking or unchecking those.
You should be able add in the control strip override anywhere in the code between the style tags and it'll work fine. I personally just stuck it before the .meta command near the top.
And increasing it from top: 40 to about top: 60 should be enough so it doesn't overlap, but you may want to play with it and choose a spacing that you like best.