Can't put Google Analytics code on site

I have 3 WP blogs. All are on WP 3.3.1 and all use the TwentyTen theme.

I updated one blog (neilsanderson.com) to the latest version of TwentyTen (1.3), and on that blog my GA Tracking Code disappeared from header.php. I replaced it in the header.php file. It shows up fine in the editor but doesn’t appear when viewing source on the site. And I get no results showing in GA.

The other sites, still running TwentyTen 1.2, are fine.

Also, my Custom Contact Form disappeared from the updated site (it just shows the code, no actual form), and I have not been able to get any other plugin form to work. I had the same form on all 3 sites, and the other two are still fine.

Thanks for any ideas.

Neil
neilsanderson.com