as3.0 upload option

Here is a link to a tutorial that is PHP-based.

http://permadi.com/blog/2010/06/flash-using-filereference-and-php-to-upload-files-to-server/

You should try searching Google for more.  Use search terms like "AS3 upload file tutorial"

Here's a sample file upload .fla. It allows you to select a folder and then select as many individual files as you like to upload. The .fla calls a .cgi to do the actual file saving on the server, so you'll also need another file on the server to do this work. The second link is to a tutorial on writing a Perl script to do this.

http://www.ddg-designs.com/downloads/uploadMeMultiple.zip

http://www.sitepoint.com/uploading-files-cgi-perl/