I have modified the php code for physletBuilder (remove login requirement/ database storage and email delivery). User can use it to create physlet simulation and download files.
I already sent you files for you to test it on your system.
Just unpack the files and upload to your server with the same file structure.
You need to modify config.php and index.php and lang_xx_XX.php
(copy lang_en_US.php to create lang_xx_XX.php  to generate local language interface).
Please let me know if it is working fine.

I will make it availbale for all users when I know it is working fine in your system. :-)