Blank Form on All Browsers

I see one JavaScript error on that page:

Timestamp: 1/28/13 4:09:35 PM
Error: TypeError: jQuery.browser is undefined
Source File: http://strokerecoverybc.ca/wp-content/themes/rttheme13/js/script.js?ver=3.5.1
Line: 371

WordPress 3.5.1 comes with and requires jQuery 1.8.3. You're including jQuery 1.9.0 from googleapis:

<script type='text/javascript' src='http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js?ver=3.5.1'></script>

That is what's causing your form to fail to display. Remove the call to that jQuery library and let WordPress enqueue the correct 1.8.3 version of the jQuery library and if there are no other JavaScript errors, I think you will find that your form displays properly.

You can use our theme and plugin conflict resolution steps to determine where that library is being loaded, if you can't fine it: http://rkt.gs/testing

You need to find out what file is loading this script:

<script type='text/javascript' src='http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js?ver=3.5.1'></script>

My guess is the the theme is doing it in the functions.php file. Theme authors sometimes deregister the built-in jQuery and then load this from googleapis. Check the theme's functions.php

You did not mention deactivating the theme and trying twenty eleven or twenty twelve: just disabling plugins. Is the theme is adding the script, then activating a default theme will at least confirm the theme is the problem.