mod/scorm/locallib.php does not process the Core_Vendor section of an AICC au file. This has been checked in current version of 1.7 and the problem persists. Can be fixed by following change to the scorm_parse_aicc() function:
on the line following:

-----------------------------CUT----------------------------
                    $sco->masteryscore = $element->mastery_score;
-----------------------------CUT----------------------------

insert:

-----------------------------CUT----------------------------
                    if (!isset($element->core_vendor)) {
                        $element->core_vendor = '';
                    }
                    else {
                        $element->core_vendor = eregi_replace('<cr>', "\r\n", $element->core_vendor);
                    }
                    $sco->datafromlms = $element->core_vendor;
-----------------------------CUT----------------------------

This functionality is required for level 1 AICC compliance.