If you want users to register VirtueMart integrate with your SugarCRM, here's the ideal plug-in.
When you register a new store VirtueMart user, this is automatically inserted as a new account in SugarCRM.
For the plug-in work correctly modify the file administrator/com_virtuemart/classes/ps_shopper.php approximately 485 line at the end of the "add" must be added the following lines of code:
/*begin hack*/
JPluginHelper::importPlugin( 'virtuemart' );
$dispatcher =& JDispatcher::getInstance();
$results = $dispatcher->trigger( 'onAfterSaveVMUser', array( $d ) );
/*end hack*/
DOWNLOAD PLUGIN VIRTUEMART USER SUGARCRM CAPTURE