Hi Marcela, first, my advice is to go back to 1.4.2. 1.5 has alot of ongoing changes yet as it is in active development, so what fixes one thing today may break something else tomorrow.
Scorm should work fine in 1.4.2, but if not it would probably be better to report the bugs in Scorm and get them fixed than to try to use the 1.5 beta code on a live site.
Gradebook_cdc should work fine with Scorm so long as the Scorm mod returns grades in the standard fashion, but we won't be updating it for 1.5 until the 1.5 code stabilizes.
Fatal error: Cannot redeclare scorm_add_instance()
(previously declared in c:\archivos de
programa\easyphp1-7\www\moodle\mod\Scorm\lib.php:48) in c:\archivos de programa\easyphp1-7\www\moodle\mod\scorm\lib.php on line 48
But, your error doesn't look like something that would result from gradebook_cdc, it looks like a problem in the Scorm module. Gradebook_cdc doesn't do anything in the modules' grades functions, it just works with the numbers the modules report. So if it was a gradebook_cdc error, the offending files would be in the course directory, not in mod.
Gradebook_sfsu will require updates to work with the 1.5 versions of the modules, if the module is updated in 1.5, then you'll have to get Jason to write new files for all the 1.5 modules that you want to use. But since these modules may change between now and when 1.5 stable is released, it may not be the best time to make these changes.