First and easy way to check version and patch level of your CRE Loaded store is to visit administrator login page which is usually located under /admin/ folder.
If you follow this way, above login form you will see something like for example CRE Loaded v6.2 B2B[13.1 (SP1)], where 6.2 is so called general version of your store, B2B is either version or modification and 13.1 (SP1) is patch level.
For some reasons you might not be able to see this info, then follow second way.
Open includes/version.php file via FTP, you will see something like this:
define('PROJECT_VERSION', 'CRE Loaded v6.2 B2B');
define('PROJECT_PATCH', '13');
Contents speak for itself.
