Hi Mariachirs,
In ssl I suggest you use Silverlight or IFrame mode to upload, if you must use flash mode, please refer to http://cutesoft.net/forums/thread/50681.aspx terry's post, point 4 SSL(HTTPS):
How to disable flash upload mode
uploader1.SetAdvancedOption(UploaderAdvancedOption.NoFlash, "true");
Regards,
Ken