Hi, jason3111.
Firstly, you are using an old version of the Mingle theme so it might be an idea to update to the latest version, which is 1.8.2:
http://para.llel.us/support/groups/mingle-wordpress/forum/topic/latest-version/
Secondly, there are no plans to make a responsive version of the Mingle theme.
Thirdly, Parallelus does not take on any freelance work. If you have a problem and it can be determined that the problem is caused by the Mingle theme, then we will fix that problem in a theme update.
Now then. Your memory issue. Why do you say something is using “too much” memory? Are you getting an error message that is telling you that?
If you are getting the standard WordPress “out of memory” errors then it means that WordPress needs more memory. You can can allocate more memory to WordPress either by a line in your ‘wp-config.php’ file or in your ‘php.ini’ file, or in your ‘,htaccess’ file.
If you have access to your ‘php.ini’ file, add a line like this…
memory_limit = 128M
If you don’t have access to ‘php.ini’ try adding this to your ‘.htaccess’ file…
php_value memory_limit 128M
Or try adding this line to your ‘wp-config.php’ file…
define('WP_MEMORY_LIMIT', '128M');
I always try the ‘wp-config.php’ method first. If you can’t fix your memory problem with any of the methods outlines above, talk to your web hosts.