[[Resolved] Changed the max file upload size but still wont work]

I am new to cubecart and am struggling to customize. I am trying to upload photos (without having to upload directly through my hosting) and i have configured filemanager.class.php as follows:  

class FileManager {
	private $_directories;
	private $_mode;

	private $_manage_cache;
	private $_manage_dir;
	private $_manage_root;
	private $_recently_uploaded = array();
	private $_sub_dir;
	private $_sendfile = false;
	private $_max_upload_image_size = 50000;

	public $form_fields = false;

	const FM_FILETYPE_IMG 	= 1;
	const FM_FILETYPE_DL 	= 2;

	const FM_DL_ERROR_EXPIRED 	= 1;
	const FM_DL_ERROR_MAXDL 	= 2;
	const FM_DL_ERROR_NOFILE 	= 3;
	const FM_DL_ERROR_NOPRODUCT = 4;
	const FM_DL_ERROR_NORECORD 	= 5;
	const FM_DL_ERROR_PAYMENT 	= 6;

	##############################################

However i am still unable to upload files over 350kb. (and i have made sure to save my edits)